New Iron Distance Adjustment + Wedges?

[Travtex]

Hey guys, weird experience/question:

I switched to graphite shafts recently to counter some elbow tendonitis (Works wonders, by the way).  Ordered a set of Di9's, and now that I'm starting to get used to them I'm finding myself flying WAY past the green.

Went from a dead-on straight shot with high trajectory (Maybe ballooning) to a lower, looping draw.  Even adjusting for the differences in lofts, I've picked up around fifteen yards.  Made for an ugly round, actually.  Bouncing off trees behind the green, finding the lake after overshooting my target by ten yards, etc.

I kind of expected this to be the case once I got the feel for the lighter shafts.  What I did NOT expect was a similar increase in distance with my wedges.

These are, mind you, the same wedges I had before.  Same shafts, same everything.  What would bring this about?

Anyone have graphite shafts also increase their swing speed with steel shafts?  My body getting used to a quicker sequence with the irons and just deciding 'Okay, we swing THIS fast, now'?

Was also overcooking short pitches, sand shots, everything.  With the same wedges I've been using for two years.