You should wait for awhile if you can and hit them side by side.
Even if your local shop stops selling the 710's, there will be a ton of golf shops in SoCal that will continue to sell off their inventory, should you decide you like the 710's better.
I used to live in Orange County, and one thing I miss is the selection of golf shops that came in all shapes and sizes--big stores, mom and pop stores, pro shops.
You'll be able to track down somewhere selling them both.
As far as the AP Irons go? I recently went from some old Callaway Irons to AP1s, and the difference was incredible. Within a few weeks, I had confidence in my iron shots and had my best round of the season.
What I think is most remarkable is that the ball flight changes with the irons, I have hit with a much higher trajectory without losing any distance. The ball jumps off the clubface and then seems to kick into an extra gear as it climbs. Very satisfied with the golfclubs.
Best of luck with the irons--you can't really go wrong here!