Recentlty un-tuned mine back down to near original speeds as my intention it so use it as a pistol-pistol (offhand/iron sights).
Made a really nice little accuracte carbine when cranked up to about 12 foot pounds...short shot count (about 19-20 shots) but very accurate.
Better serves me as a pistol-pistol than a carbine-pistol (although I added a shroud and a new front sight, it's still your basic 1701).
think you'll really apprecaite the 1701's accuracy. If you are power hungry, there is only so much you can do with a tiny air volume.