Lots of good replies already. I’ll add that IMO the big variable is individual skill set, ie how well a given operator handles the tool. With a DE it‘s not automatic. In my hand a 34HD yields more comfortable/efficient/better results than a DE89 — due to balance, handle size, weight, who knows? Doesn’t make sense to me as those two razors are very similar, as are (I think) your GC and DE89, but I can’t dispute the results.