ShopTalk: ACD shafts

[Alan Joyce]

I think I'm going to build  a new set of irons using the the new dynaflex II but I may try them with graphite shafts. The recommended shafts that Dynacraft suggests is the ACD. Any idea who makes this shaft for them and is it any good? The weight is about right 88gm. I was thinking of using rifle steel shafts but the price is the same but the shaft will be slightly lighter. My swing speed for a 5 iron is 80 mph. but I find that I rreally lose distance from my six iron down to the three. I can hit my six iron about 165-168 yards but my three iron only about 185-190. (4 &5 iron are anywhere in between  these) Will going with graphite hamper my shorter irons for feel?...suggestions??   Thanks Alan