Iron shaft advice

Now I'm playing the Aldila 75g graphite reg in AP1s. The weight is good for me. I want a higher ball flight. Are the KBS Pro 90s higher? And will the steel shaft lower the twist? I feel the torque on the graphites widens the dispersion. What about NSPros in light steel? I'm not concerned about distance, accuracy is my goal. Please help

Ken O ; Can't advise on what shaft you need, but I can tell you that I was hitting CG irons with graphite and got good distance with them and a high flight. I now have the AP1's with Tru Temper R300 steel shaft. I have lost 6-8 yrds. (maybe 10) in distance, but I used to spray the ball all over the place with no consistancy, now I hit the ball straight 90% of the time. I'm like you, accuracy is the most improtant. If your hitting straight but short, you can always take more club. If you hit it long but off line, you are stuck. Just my 2 pennies worth. 

I have AP1s with DG R300 Hi Launch.    They give a high ball flight. 

I've tried some 755 irons with NSPro shafts and they were accurate.

Also a little point to ponder - there is a swingweight difference of 1 point for every 9 grams of shaft weight.  Not much for an Aldila 75 vs a 90 gram steel shaft.    About 5 swingweight points for something like DG R300 so the steel clubs can be shorter for more control (general rule is steel shafted irons are 1/2" shorter than graphite).