Your post caught my attention because the topic is somewhat similar to my tuning question a couple of months ago about some AC30's that I bought as demo's -- but in wonderful condition. Being just a recreational skier (although an athletic type that loves to carve and still bash through moguls), I was never a deep believer that a good stone ground and edge tuning would make much of a difference to my skiing experience. I only just kept my edges relatively sharp and applied some hot wax on occasion.
Back to those AC30's. One of pair had a bit of a gouge in the base. So the salesman offered to have it P-tex'd and then stone ground -- included in the purchase price. When I picked up the skis a week later, I asked the tech about the edge bevels. He said 1 base and 2 side. Fine, but a couple of days later, after I had been doing some research on this site (and others) about the basic points of ski tuning, I took a more critical look at the AC30's. Checking with a straight edge I noted that the base was concave in relation to the edges along the entire length of each ski (i.e. the edges were protruding higher than the base), and also some of the edge material still had a slight amount of rust/tarnish. The gouge was filled, but obviously, the shop's "stone ground" job hadn't been too precise.
On my first day of skiing, the skis didn't seem right. Certainly they didn't live up to the AC30's as being "one of the best all mountains". On the first run, an easy blue trail, I sort of just fell mid-way through a turn. Yeah, this was the first run of the season, but falling like this for me isn't the norm. The skis just didn't track/behave well. As the day progressed I made adjustments to accommodate, but I wasn't enamored with the skis. The next day, I skied on my also new 2009/2010 K2 Recons, which I had tuned myself before the trip. Wonderful action and control; although definitely "Lexus"- like, as sometimes commented on this site. The day after, I skied on the Volkl Supersport 6-stars that I picked up at a garage sale. (For $10!) These also I had tuned myself before the trip. The carving action and quickness of rebound from edge-to-edge on these was something I had never experienced before.
Back to the AC30's again. Back at home, I have now filed/scraped the bases very flat in respect to the steel rails and have put in a appx .75 degree base bevel and a 2 degree side bevel. Hot wax has followed.
I've yet to ski on the now tuned AC30 since I've got pre-Christmas obligations and besides the wet/storming weather conditions at Tahoe haven't enticed me back up. After my next ski on them, I'll report my impressions on pre vs. post tune performance of the AC30's.