Good folk of BBS your opinions and input are required

I have a (small) space left in my hidey hole that I have a hankering to fill with a AR15esque/bullpup black multishot PCP, have narrowed it down to a choice of three (until somebody muddies the water with an alternative)

Between the two FX's there is dual or single regulators, one is an older design with more aftermarket options

The Ixia is half the price or less of either of the FX's, it's rail will take 9-11mm or weaver, and from all the (many) video reviews I've perused is quieter out of the box than the FX's, so I don't need to add length (why buy short only to make it longer!?!?) or cost

I can get the parts to add the adjustable regulator from the export/FAC Ixia cheaply making calibre changes a cheap (barrel, probe and mag) and relatively easy job - an FX barrel alone is around 2/3rds of the price of a complete Ixia

Clamp any one of them into a bench and they will be boringly accurate, so some real life views on how each perform, feel and behave could sway me