That's not a digram. It's not even a bigram (the proper name I think) but a trigram! :-)

Yes, of course we can talk even if you type QWERTY. Sure thing! So, in Colemak terms that's FCG (FCB for most Curl-modders). As you can see, not something that occurs in words. This is one of the reasons Colemak is good! It makes the most n-grams more comfortable.

What you've encountered is a particularly bad case of a same-finger n-gram. Double row jumps, obviously bad. Short of getting a better layout (/shameless plug), you'll have to use alternative fingering if it's common enough to bother you. Master typists don't stick religiously to one-key-one-finger doctrines, but have some situational flexibility. It's not as hard as it may sound! And it's what lets Sean Wrona be possibly the fastest typist in the world (on long stretches at least) ... on QWERTY!

So, what I'd do for that one is... lessee... E-4, C-3, T-2? Or, just suck up the index finger jump because it is strong and flexible after all, and go with the simpler E-3, C-2, T-2. If you let your hand "semi-float" (it shouldn't be too stuck in place!) it's really not that bad. I'd consider it. But I do use an Angle mod (or, as it were, CurlAngleWide!), so for me that's not the correct fingering of C and I might end up with the first option if the n-gram bothered me much (or just wing it now and then ... maybe). One problem is that if you do this kind of thing you risk missing the keys that you jump to, so it's not for the faint of heart. ;-)

About C fingering: As a QWERTY typist you can use the Angle mod! You may have an ANSI board which doesn't allow the most elegant variant of that, but there's the Angle-Z that isn't bad. Look it up in my sig topics for instance.

LHA isn't great even with default Colemak. I suppose you could use alternate fingering for it, but still not as good as LAH.  Or, what about HAL?

Wouldn't it be freaky if you one day you typed "ls -hal" and got an error message:
"I'm sorry, Dave, I'm afraid I can't do that"

432 is awkward. My 332 is trained pretty hard so I'm moderately fast. I'm sure I could get 322 the same.

What about these for Qwerty ECT:

L3 L2 L3
or
L3 L2 R2  !!

That R2 might be the best yet. And I'm pretty controlled with reaching from/with the right shoulder so I will give it a shot.

Qwerty 'SUBJECT' alternate fingering:
L4 R3 R2 R3 L3 L2 R2 !

LH on Colemak looks like UH on Qwerty, which would be an easy 32 roll alternate

423 is better than 432 but still tough for me

I think using R2 for 'T' at high speeds will be fine. Its actually suggested by another guy, thats probably where I remember it from:

https://www.keyhero.com/practice-typing … m-average/

In the comments he suggests using L2 to type the 'Y' in 'anyone'. Same theory

This genius from typeracer chat just suggested this:

e - middle
c - THUMB
t - index

mind blown again

After some practice, I pretty much exclusively use the THUMB on C with words having the ECT trigram.

However if the gram is ECTIVE, which many words have, I will use Left 32 (middle,index) on EC, and then Right 24 (index,ring) on the TI combo. This is nice once you get it drilled