Think I've read from Keyclone it might also help to set the priority of your keyclone.exe a bit higher in the taskbar. This way keystroke start and ends should not get lost.

I too sometimes have chars running away(most of the time just 1) when I just press the spread out button, happens once a week :P Just keep your /follow button close, so whenever it happens next time smash that button and they should come back.

Good luck, hope it helps