Folks, how 'bout it - will a "TP" recoil spring work on a "TPH?" Wolff has "TP" springs listed, but does not list "TPH" recoil springs. "Gun Parts" lists the "TPH" recoil springs but they're out of stock! Will the "TP" springs work on the "TPH" or, if not, where can I get a "TPH" recoil spring?