if you feel adventurous, you can get d2f-01f japan made version of the omron, if you want consistency with what you're used to, get the d2fc-7n (china made), you don't have to get the 20m 50m versions, they're actually meaningless. Logitech achieves those numbers by preventing overtravel, it's most likely the exact same switch as the lower rated versions.
Click on my WMO ultimate guide below, it has everything you need to know about soldering Omrons switches.
(you don't have to cut the pins like in my guide, because that's only for modding WMO)
