I think its either way; ór some oomph ór smooth shooter. If you want max performance out of it, it wont be a smooth shooter.
I had my Ospreys Supertargets tuned for smooth shooting. I only shoot short range (6yrd) so dont need power. As close to 7.5J was enough.
Allthough even at that power, theyre not as smooth as an mk3 ST or Walther LG55. I think because of the taploader system.
A longer spring with thinner thread was used in mine. And a spring guide was added.
Ospreys arent really made for high power anyway.