I've been playing around with taking measurements using both the Golfsmith Golf Club Gauge (model from a couple years ago) and the Scotland L&L machine I recently purchased (roughly 6 years old). The Scotland lofts are based on the older 'standard' of a 30° 5 iron, but doing the math is easy enough to measure the loft & lie.
Lie measurements come in really close, or at least close enough that I don't question either of them. The loft measurements are usually quite a bit different though. The GS gauge seems to average 2-3° stronger measurements in loft vs. the Scotland. I would guess that the GS gauge is inherently more accurate, but I'm questioning it at the moments as I've now assembled 3 sets of irons since having both. All three sets measure strong across the board according to the GS gauge, but are almost all dead on according to the Scotland. I'm not so much worried about having each one dead on spec, but I'd like them to all at least have an even loft progression of 4°, and I need to start somewhere. So, which do I believe? I thought I remember reading something about the Scotlands being off a little on their loft readings, so before I start bending, I'd like to get some direction on which reading to trust. Thanks, Scott