Played twice with these with a regular x105 shaft, the one I chose in preference to xp90 (the two track man recommended in the fitting at American golf.) Had previously taken 714s back as the s300 dg shaft too stiff and heavy. Really struggling with weight of long irons- compared them with a mate's s300 714 and there's hardly any difference. You don't notice on track man as it's not a course( well I don't anyway). Losing distance and cheesed off as I've paid £700 for irons I can't use. One trusts the advice of people fitting you. At time I couldn't feel difference between xp90 and Xp105 and went with xp105 as my rac irons were 109 gms. These though feel way heavier. Not sure I can take these back under AM's 30 day trial as I've already taken one set back. Should I just give them a go? At 55 I don't want to be struggling to swing. SS is between 76-80.