had some not so good experience in the past with double edge razors (mostly because of prep technique)
sensitive skin . need to shave 2-3 times a week.
used sensitive shave foam (Gillette and many other brands), now using with success some no-name brand found on clearance at warlgreens.
for me it seems to be: get some water, give time to foam to act, use a sharp blade/blades at right angle.
some how I get rush after using after shaves, so cold water after seems to work best.
for blades Used a lot of disposable (what's on sale), mach3 (but too expensive now), and I will give it a try to schick disposables soon.