I liked the weight and sturdiness of the HW80 I owned (.177), but i didn't like the lazy, slow, heavy feeling shot cycle (courtesy of the 30mm piston and weak spring (and the effect that recoil had on my ability to shoot accurately).

The HW98 i currently own shoots with a much quicker, snapier feeling recoil. Closer to a Theoben or v-mach kitted rifle. Thats why the 98 stayed and the 80 whent.

Iv'e not owned a 95, but it would be simple enough to add a bit of heft with a barrel weight or heavy silencer and heavy scope and single piece mount.