I was grinding zoom cash games just like you on stars for the last 2 months and i built my BR by taking shots with 10-15 BI at 10NL and i was very succesfull. The only diffrence is that i played full ring without a hud becouse it was faster. I also made my post flop decisions much easier playing the top of my range, taking advantage of my position and skill edge.
This is what i have to say about it:
1.Zoom tables are full of nits folding everything but the top 3-5% of their range which is TT+ AK. So how do you win ? Even though there are full of nits, there are 100x more fish there. Becouse i didnt use a hud i looked for other
tells.
Firstly look at their stack sizes. Not a lot of good players will buy in with less than 100BB. So they are probably more fishy.
Secondly their bet sizeing. Its going to be some strange donk betting min raising, limping stuff like that. You should also look if they are positionaly aware which means look what they open with and from where.
And thirdly TAKE NOTES. I cant emphesize this enough. Especially against regs and multitablers. They are the ones that play similar to you. Preflop they probably wont make to many mistakes, but look for post flop leaks. They are either too loose-passive( value bet ), too tight (check raise
bluff, barrel, steal...), to aggresive(call marginaly, trap...)
2.Never buy in with less than 100BB.
3.Bet your strong hands. Fish dont know what it means when you raise 3xBB or 5xBB or 7xBB. They will call if they think their hand is pretty or its their favourite hand or whatever. Exploit that. Also most of the time you will get less callers and go against hands that you dominate.
4.Steal like crazy and defend your blinds with some lighter 3bets. Since there are bunch of nits playing zoom they will fold roughly 65-70% the time in my opinion, which means your steal of 2.5BB from the CO or the BTN is mathematically a gold mine. Also they will fold roughly the same percentage to 3bets from the BTN and CO. Use some suited Ax, Kx,( having some blockers in your hand means more fold
equity), suited broadway cards or some suited connectors. Be aware that this is full ring in my case. 6max calling ranges to steals and resteals are going to differ from full ring, so you might want to put in more value 3bets in your range, but you should also have some light 3bets as well. Generaly 6max is more aggresive and people get more stickier with their hands.
5. I would advise not to play zoom poker as a regular game type.
Swings happen more often and people dont cope well with huge downswings. Yeah you play more hands and there is more action but magority of the time you will play against unknowns with litle info so you will get into much trickier spots and will face some tough decisions pre and post flop.
5. So to finally answer your question do you fold QQ/KK.
Lets talk about KK firts becouse its not going to take long. In my 2 months of grinding zoom full ring i folded KK pre only once. And thats becouse we were both 200BB deep, he raised from UTG i 3bet he 4bets i fold + i had notes on him.
Generally speaking in a cash game 100BB deep its never going to be -EV to go all in with KK, especially when you put more than 1/3 of your stack in the middle. Lets say at 5NL you raise from EP standard 0.15$.
A nit with 5% 3bet 3bets to 0.5$ and you 4bet to 1.5$ which is about litle less than 1/3 of your stack and he shoves all in. You need to pay 3.5$ to wing 6.5$ so you are getting 1.8 to 1 so you need 35% equity to make that call, and lets say his shoving range is in worst case scenario KK+ AK. Even against a range as strong as that you have 47% equity so you have to call. You only fold there if you are certain that he shoves only KK+. Against an unknown in 6max i am never folding.
QQ is a litle bit different and would you believe me if i said that is the one of the toughest hand to play at full ring ? I have folded QQ plenty of times. I like full ring becouse its more straight farward and peaple dont raise marginal hand from EP or even MP. 6max is action full and would get more stickier with QQ.
To an EP raiser, say UTG raise, i am flating IP about 40% times against reg opponents, cause i dont think he continues with much worse when i 3bet(maybe 99, TT and JJ and AK which has really good equtiy against our hand), he 4bets KK+ and AK and you will probably have to go for a shove or fold. Calling the 4bet gets you in a small SPR pot and gets you pot commited.
Flating his EP raise IP gives you so much more ways to win the pot.
Against a fish i raise 100% from wherever he opened.
Blind vs steal i would flat 50% and i would 3bet 50% time against regs. Both have advantages. Lets say he steals light you call. You give him a chance to cbet when he misses (and he misses the board completely 2/3 of the time) and you get more money out of him whether if you 3bet he is more likely to fold and you only pick up the inital raise.
3bet is also fine couse he is going to call with so much worse hands and at 6max i would probably go for 30% flat 70% 3bet.
Blind vs blind i am never folding QQ pre against an unknown, simple as that.
Hope you find this useful. This is my first post in the past 18 months and i put much thought in it cause i went trough same thoughts as you did and gathered this information trough training, experience, cardschat collegues etc...
Good luck at the tables.