Go for 111. I use 122 for 7.3-9.0 sails, I'm 86kg. You say your biggest sail is 7.3 at the moment, so no need for a 122 unless you plan to use 9.0 a lot. I wouldn't put a 9.0 on an iS111, but at 70kilos maybe you can get away with it. 8.5 is the biggest I would call a good combo.
Btw, I think you ask too much of ANY board if you want it to be really comfortable with a 6 and a 9. Imho of course, tried and tested, possible but very far from ideal.
Edit: hey where has the small Angulo gone? (from your equipment list). Do you like your acid better after some time? We had a discussion last year, about high wind boards, and I'm glad i went for Acid74. It really is a freshwater gale board for me.
Last edited by Screamer; 1st December 2008 at 08:32 PM.