I think there's been about a million "if you could only have one..." threads, but recently I moved to work and had to make that choice. I brought a '40s S/S, Omega Deluxe (can't remember the model No) and some MWF, with Bolzano blades. This set-up has proven less than effective and I think this is totally due to the hard water, which coats my Superspeed to the extent that I need to de-scale it with a toothbrush every week. My lather seems to have lost heart, my blades aren't sliding and my results at times have been less than SAS. I believe if I'd brought my R89, some Feathers and RSCo Cream, things would be much better. Unfortunately there is a dearth of real shaving gear around....I'm even thinking of trying to make a superlather with Muji handsoap and.....Gillette gel. I know!