regular straight iron pulls missing by a whole 20 yards (60 feet) is a whole bunch off line & 1º more upright ain't really going to be a whole bunch of help
then in all honesty spending the $'s instead on a series of lessons to identify the root cause of the pull (could be sequence related but also could well be a bunch of other stuff that's playing into the leftfield path through impact with matching face alignment) would probably net you more bang for your buck in results
did neither of these fitters give you a 5i or 6i with the 1º upright to hit & test on the LM against your own specced club ?
to whether 1º might really make a good difference for you as this is around very fine tuning for that to be of significant help there has got to be a very repeatable swing motion delivering very similar impact conditions on a real regular basis ..... then it's possible it could be of some help (assuming we're really speaking to 20 feet off line)
so assuming you meant to say 20 feet leftfield miss but even so think the fitters may still be a degree out assuming that repeatable leftfield swing path through the bottom half (hip height to hip height) of the swing - the real money part!
if say the lie angle of an iron was 2º out from what it should be as an optimum fit for a particular individual swing motion then either 2º flatter than it 'should be' or 2º more upright than it 'should be' - for those '2º out' it could mean being off line by approx 21 - 22 feet - if say you carried this lie angle test out with an 'iron byron' or similar
wondering how exactly they qualified the spec advice to you
also wondering why they didn't put a 6i that was the 1º upright spec in the hands to hit against the current one in the bag?
think $'s spent on a bunch of lessons would prove to be a ways more effective
but if now it's 'in' the head .... would seek out a specialist fitter/teaching pro & hit a 1º club against your own
