I really cant help you there Steve as I dont own any Merkur razors. a 90R has a longer handle then a Merkur HD if im not mistaken.the Merkur is heavier though. if you like agressive then you should try the 3 Piece of Parker I have heard its a pretty agressive razor. and exotic looking aswell. I just checked inventory I currently have only 3 models. NO 786 is a 3 piece . the other TTO. Website is not finished yet.