I heard the release date for 712 irons will be november.  However you might want to check with a certified Titleist fitter a few weeks prior to the launch date. Fitting clubs (sometimes) go out early. 

Friendly Fitter. 

At this time, we don't offer the .62 core grips although we hope to in the future. 

I would go with AP2's

I would probably talk to him privately, then go from there

Just wondering how to get in on this? 

Cheers