[Shadowcliff]

Welcome back!

I also play spread, though I use two rows. W D K O
This greatly improved my one-handed trills, and generally felt better for me after getting past the new-setup awkwardness.
Also I have tried spacing out my fingers more--Q D K P--which surprisingly enough helped me read and respond to jumpstream a little bit better, but that was overshadowed by problems it gave me with other patterns.
Try various spreads!