I have migrated most of mine to .30 as that is the largest caliber I shoot. The difference in sound signature and air stripping seems to be far more affected by the volume of the can than by the diameter of the through hole.
Something doesn't seem right with shipping. I went to order a picatinny riser, and shipping was over 20.00. Almost 1/3 of the total. That is more than double what I was quoted for a similar object only yesterday from a supplier much farther away from me. Sorry I can't do it. They also want you...
The Mora has a newer, more sophisticated valve, an amazing trigger (all of these do), and is capable of more than enough power. I own a Vet 2 and it is wonderful, but the Mora would be my choice.
Excellent results! These guns have an optimal pressure range where accuracy and consistency are best, even with the same final velocity. You may have to change your name to GermanDaystateFanboy lol. I like them all!