I finally hit that point again where I felt the wins no longer could justify the losses in comparison to my BR at 25NL (I did the same at 10NL), so I made my move up to 50NL 6max with 22 buyins.

Now, there was a huge difference in play from 10NL 6max to 25NL 6max, same amount of fish, but not even close to as loose/passive. What can I expect in this new level? What adjustments can and should be made to normal play?

My winrate was only marginal at 25NL (probably 6bb/100, compared to 13 at 10NL but I've heard this is often the case in 25NL) and I started to experiment with LAggy (which worked on the right table) so I'd say my game is semi-tagg and semi-lagg rather than either/or