I recently got to try out a mixture I made out of curiosity. I mixed about 40% OHC in with 60% OP and ended up with a product that gave a little bit more bite than straight OP but didn't leave the marring OHC usually leaves behind.
I used an LC Orange with the mixture and had an LSP ready finish in one-step on a lightly-swirled car. It wasn't near as aggressive as OHC, some areas needed a second pass upon close inspection, but it definitely had a fair amount more bite than I usually get with OP. It also didn't clog up the pad near as bad as straight OHC.