I have the original T3 pad, the larger (sharper) T3X, the Limbsave AirTech and the Limbsaver #10011. The std was on my T3 lite, the T3X on a new stock I bought and the 2 Limbsavers are from the US. The #10011 is "in the post" and should be here in the next 10 days(ish).
The AirTech is squishy and does reduce felt recoil a fair bit (I have a .22-250 so don't have a great deal to start with to be honest) and both the AirTech and the new T3X are longer than the std T3 (which is what I was after).
The T3X stock is bigger all over and so the T3 lite stock is now languishing in the corner although it does feel 'better' with the larger T3X pad.
As soon as the #10011 arrives i'll be able to make a decision about which pad/stock combination I prefer and the others will be 'for sale'.
I think the #10011 will be the answer or I might take the T3X to the flapper wheel and remove a bit of that 'kink' and shape it more like the Limbsaver, the thicker pad suits me better than the std T3 (although it's only 8mm thicker so maybe it's in my head)....
I'd like to try the AirTech on a larger caliber (if there is anyone near Lanark willing to let me ??

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The std T3 recoil pad is for sale now or would swap for the std, plastic, bottom metal (£10 posted)