As usual by now, that's based on doing a few days of sessions in Amphetype where I go for speed rather than deliberate practice, then looking at the Performance tab -- the last few times I've I just been looking at the raw data for Texts and sort of doing a 'robust fit by eye' (i.e. ignoring the outliers). When looking at this number I don't really try to look for improvements smaller than maybe 2.5 wpm -- you can still get some idea if you're getting better slowly by looking at the moving average, but that lags your current best wpm of course. Total hours practice right now is roughly 57 (172 practice sessions of about 20 mins each).
Glad my feeling that I'm still making progress has finally shown up in the speed tests! "Just" 5 wpm to go to hit my original target of 65. I'm sure I'm going to hit that target now -- for a while at 50 and 55 I wondered if I was making enough real progress to get there, but of course progress does get slower as you get faster.
I also feel more fluent and have to concentrate less, though recently I've been making a lot of mistakes with R and S again. I'm sure that actually starting to use it "for real" will inevitably throw me back a bit again -- for example I'll have a lot of new "words" to learn if I start doing coding -- lots of key shortcuts that I know very well with QWERTY and not at all with Colemak yet. Also, my own day-to-day vocab I'm quite sure doesn't exactly match that of Marcel Proust or Joseph Conrad.
And, damn it Dreymar, I am tempted by mod DH. Good reasons not to:
1. I don't feel enthusiastic to be patching spacemacs to support "KNEI" motion keys -- straightforward enough to start off with, but then I'm in the 0.001% of users who use that and maybe fighting a time consuming battle to keep it working with all the third-party code I end up using. Spacemacs key bindings are complicated enough to deal with already! On the other hand I'm probably almost in that position already with plain Colemak, and "K" and "H" are both already motion keys so maybe I won't hit too many extra problems that I won't already with "HNEI".
2. More vertical motion: avoiding that was the whole reason I started using Colemak in the first place. That was mostly for middle and ring fingers though.
3. Re-learning. But I think I might enjoy it.
Unfortunately, more persuasive: I think I *like* Colemak mod DH. :-|