Hi everyone----I bought a box of both Underwood and Lehigh Xtreme Cavitators ---shot from a "flywired" magazine using only Xtreme Cavitators---all worked well--two mags. each. Only one FTE and that was an Underwood---after examining the casings, it looks like my gun was grabbing the Lehigh cases better---deeper ejector grooves. The Underwood case is super slick. I am not saying the Underwood ammo is not good, just my gun seems to favor Lehigh.
Hope this will be interesting to other 32 shooter.