Well, tough to answer this in general. These are the most important things to consider in my opinion:
- your winrate (BB/100hands)
the higher it is the better obviously. Usually the downswings wont hit that hard if you have a higher winrate.
- your mindset
If you use an aggressive Bankrollmanagement it can effect your decision making. (tight fold on turn/river, to tight vs 3 bets)
Are you willing to move down again? If you chose an aggressive approach and things are not going well you are forced to move down earlier. This is easier said then done after you droped 3 or 4 Stacks. Players Ego get hurt, they feel the need to "win it back" right away. This is not how it works and end in desaster for you bankroll
Playing NL5 with just 10 Stacks is very aggressive Bankrollmanagement. In my opinion to aggressive.
I would recommend to have a Bankroll of at least
$75 and move down to NL2 once you reached $50.
This is already a very aggressive approach in my opinion.
Well give it a try if you feel to much pressure and you are not able to play your A-game just move down again. It is important to be in your comfort zone.