...are actually more hold sensitive that the 25s

Shooting today with a 22mm TX, around 90mm stroke, benched. Was getting an inch of vertical stringing. Then realised it was because I was getting lazy with my technique, letting my RH pull down on the pistol grip, the buttstock being supported by the rear bag.

I then shot few a strings much more attentive to position, and the stringing disappeared to give some lovely groups...

Now, the short stroke 25s (78mm), simply would never have that issue.

Going to test the 23 (86mm) tomorrow, but I think that's OK too...

I guess that whilst the longer, smaller bore strokes are more efficient, there comes a point when the extra stroke simply can't be made up for in efficiency and the overall "lock time" suffers ? Going to look at a rather funky recoil simulator and see what it thinks...