I was just wondering about the barrel length,I do the same with my mk2 tx as in,would it 'smooth' out the snap just a tad,with 14' or 16' instead of 12/13'? Probably,but not enough to the point it would make a massive change,so a lot of work or another rifle to swap about for no actual reason other than a what if

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The thumb hole stocks aren't for me,but some really get on with them,if you say it works for standers I believe you,id say it has to do with the hogs back cheek peice combine that with a 'forced' 'fist' type grip working toward a stable hold?
When I used the thumb hole stock,it put my hand wrist and finger in a complete different place(wrist seemed to be pushed down at a forward angle as was my hand and finger?)to how i normally shoot a sporter stock,it was so far off it felt un usable to me and ive questioned what or who the stock design was intended for as anything I tried just wouldnt work to get a correct finger placement on the trigger! Its probably because Ive never shot thumb through? I was taught thumb up or off to the side (came from prone small bore)
Ive said before the closest to a 'good' standard stock(for me) hw have ever made was the old 97k stock(the one with just checkering on the grip) the reach to trigger isn't terrible(but not perfect) and the cheek piece was close to or usable with low ish mounts and no more than a 40mm objective scope