Having played small forged blades all my life, I had a near-hosel contact spot completely ingrained. Last summer, when I was starting up the game again, I hit a number of irons in a golf store, with impact tape, and every shot was near the heel.
What I wonder/worry about is that some of the new irons are supposed to have the sweetspot in the middle of the club, but given the size of these clubs and their 'forgiveness' I worry that I won't be able to FIND where the sweetspot is. The good thing about a blade is that it tells you clearly if you are on the sweetspot, so you learn to hit it near the heel without trying to hit it near the heel.