ive got a rapid mk1 in .20 cal, its got 3 power settings 12/27/42 flbs but i only use it on 27flbs as its all over the place on the higher setting.
i dont think speaking about is a problem mate, people over here doing without having it on their fac might be a problem though.
there was a company over here in leeke staffordshire, stalker rifles i seem to remember it being called that made very powerfull air rifles up to 6/700flbs in calibres up to 7.62mm.
I have a few from + 130 ftp and the maximum I have is my Quackenbush at the moment with about 683 FTP
The weapon I like the most is my 6.35 Condor (the only one in the world) wich is specialy made for me and tuned by Antonu Annuzi in the USA and I tuned it further.
Now the thing is set on (13 settings) 168 ftp.
I use it for LONG RANGE shooting +- 450 meter (475 yards)
Easy weapon to dismantle and I do like the Theobens.
I have a MK II wich is now running at 108 ftp in 6.35 - shot.
Special thing my Theoben.
Longer barrel in Polygoon
Anshütz triggergroup (match)
Special breech (completely rebuilt)
Vector silencer (I made my own silencers hehehehehe)
Quickfill and gauge
Larger air bottle (500 cc instead of the normal one - I need the air because of the power)
Little scope on: hehehehe 10 - 40 x 60 E - SF