I do not think there is much difference between 4NL and 10NL.
Try and put the price of the blinds out of your mind and just look at it for what it is a poker game
. I think the reason a lot of players have trouble when moving from 4 to 10 is that they try to hard to change their game which is not needed.
If you are a solid winner at 4NL then you should be good enough to beat 10NL in my opinion.
Did you say you are using a HUD ? What is your winrate at 4NL ?
I do not play full ring I play 6 max so have no idea what your HUD stats should be. I run around 21/18 3-bet 6 at 6 max and that is considered a TAG.
It is OK saying that you want to play tight as a default method but you should be taking into consideration how your table is running and what players are at that table before deciding how to play. If you are at a table full of loose passive fish then yes playing tight would be the best option but if you are at a table full of nits then opening up a bit would not be a bad idea.
When it comes to table selecting I would focus more on my seating position rather than the actual table. Try and have the fish to your right and more tight players to your left. Another bit of advice would be to try and avoid getting in to big pots with the more aggressive regs until you are comfortable at that level.
GL anyway mate