G
GWU73
Visionary
Silver Level
If it works for you go for it. There is no ethical code that says you must stay to lose back your winnings or risk more than you are comfortable losing. I have bought in for 50bb many times when I was just short of cash. Anything 50bb or better is enough to get some play. I use 80bb stacks when trying a new stake or if my BR drops to low for 100 bb buy in rather than drop down.