Do you see it wrong?
I use 50buy-ins myself also for S&G, i mean a player in bigger stakes or with bigger BR probably is better using 100buyins if want to be safer, but i don´t see wrong 50buy-ins for low stakes in a $100-$200 BR.
Even if consider the 5% rule, 50buyins is even "safer".
If have $100 and use the no more than 5% rule then 5% of $100 is $5, so play $4 buy-ins S&G looks ok, when in 50 buyins with $100 is $2 and if want to play $4 S&G need at least $200 (for the 50buyins), so for me is safer go with 50buy-ins.
Even some consider 30buyins for casual players correct (i think is wild but i guess it depends on everyone)
So don´t understand why you see 50 buyins wrong.
Well i played blackjack with 130 and guess what? I lost it all. I decided to only play at pokerstars and fulltilt cause they dont have blackjack in their software and i uninstalled all pokersites with blackjack in em. Blackjack kills me. Dont get me wrong im a good poker player but with blackjack, I say FU.
I don't think 40 buyins is enough to play these as they are quite high variance and swingy. There is a lot of good advice in this thread, just listen to it. At least 50 buyiins for your SnG, 1c/2c cash and maybe 1.10 MTTs. apart from that stop the blackjack, its stupid and you won't win. Willpower and self control is crucial for your success OP125.is good starter I like the 90 player 3.30 ko games always a chance to win back buy in and maybe more if you cash..