Snelly, had exactly the same issue last this year with new irons, trust me you will not get used to being a club shorter! I was doing the same as you, sometimes a club more than my mates and still being short! I went back and changed them in 2 weeks!
It's nothing to do with air temp or hit it harder, i'm also a smoother rhythm swinger and you shouldn't have to change your long established swing to suit new clubs.
What's the difference in weight between your old and new shafts?
It's nothing to do with air temp or hit it harder, i'm also a smoother rhythm swinger and you shouldn't have to change your long established swing to suit new clubs.
What's the difference in weight between your old and new shafts?