Based on recent history I see that I could 10x my winrate by cutting my sessions down to 30min. per day

Gotta hold back with cashing out no matter how much I really really want a HD projector, so I can move back to 100NL next month.
It will be pretty tough to match my 50NL winrate, but if I want to get to 200NL+ any time soon, I'll have to move up.