I've always used masking tape and a 3 x 1/16" cutoff wheel. I also have a squeeze bottle of "Russell's Hose Assembly Lube", a really black oil, don't know what's in it but a drop or two on the fitting threads (and the part that goes inside the hose) works great.

Never had a problem mixing Summit, Fragola, Russell shruggy I did make the mistake of trying a Chinese copy from ebay once. Never again. Stripped before fully tight!