Just some background on me.I have been playing golf for about one and a half years and have played off 25 for one year now. I own a 12 year old set of irons and not thought of changing them till now. I have just got back from a 4 day golf break in which we played 8 rounds of golf with a hired set of clubs my worst round was 93 and my best 90 so on this trip I would of been a 20 handicap I was using two different sets the Cleveland 588 altitudes and the Nike slingshots, I found my irons was going 10-15 yards further and getting a lot more height (I have been known as a daisy cutter with my irons) was this just that I was relaxing or was it that i was using new clubs.Do you think it could be that my irons are holding me back a little.