Just bought a EAA Witness Compact 45 auto (Tanfoglio) with 3.77" barrel and was shocked to find the Instruction Manual recommending against +P ammo in all their polymer framed pistols.

Questions:

* Is this a legal tactic?
* EAA is saying this to prevent possible warranty claims?
* Poly frame actually cannot handle extended +P use?
* Pistol is really up to the task of +P ammo?

Can the dual Recoil Springs be upgraded to slow the slide speed down for better protection of the polymer frame?

Thank-you in advance of your advice!

Steve