The C8F is the triple, whereas the C8A and C8T are single. And the A/T are tailswitch only, whereas the F has both.
I don’t mind the tailswitch, as momentary-on is something I harp about quite often as lacking, but it’d be nice to have the option to switch ’caps as needed. Makes the light a little shorter, and it can still be hard-switched on/off as needed, just like a twisty.