Ducko, do you do this a part of a bigger session or in isolation, it doesn't seem like much, even after an extensive warm up?
My issue is that I'm only getting max 1 session a week at the wall (life doesn't half get in the way sometimes) so am trying to fit in some more fingerboard sessions. Two of your sessions, a wall session and maybe an outside mission for a morning doesn't sound that much if the fingerboarding only actually equates to 6 hangs of 7 seconds!