A 92 ft/lb springer would probably weigh around the same as a Ma Deuce and kick about about the same. If you need 92 ft/lb a rimfire is your best bet. Some PCP airguns will get you there, but at considerable expense and probably low shot count. I'm guessing here but is your 23 ft/lb gun a Benjamin Trail NP? If so it's probably more like 18 ft/lb. Springers like the Diana magnums will get you about 23-25 ft/lb. If you go that route I would suggest the Diana M48. BTW, 18 ft/lb will cleanly kill squirrels out to at least 40 yds.Scotty
I understand this thread is about power, but accuracy will come into play with a more powerful gun. The process of firing a springer sets the gun into motion from the recoil. The motion begins before the pellet even leaves the barrel. You must hold the gun consistently to expect any accuracy. The motion must always be in the same direction at the same time in the cycle. More powerful guns are generally more difficult to master.