For me the GC .84 SB is both smoother and more efficient than the RexEnvoy. The Envoy Feels more Aggressive than the Gamechanger but in the results it leaves more stubble behind per pass in comparison to the GC. Envoy definitely has one of the best handles and I will give it that . YMMV, and hope the Rex Envoy works out for you. Happy Shaves!Also, I have seen folks say it is much more aggressive than a GC84 and others say it is not nearly so. Strange how much YMMV with this one.
I find my Red Tip pleasurable so I hope I like it.