I haven’t used the actual 71, only the 712, which is a variant on the 712. The PRO website says the 712 is longer and taller compared to the 71. I think A2rhinos description is pretty good. The 712 is not open, so I assume the 71 isn’t.
Because it’s a toe curve, in this case, longer means it’s got more blade before the curve, so you have more space to work on the back hand. For me, this also means there’s more flat space on the forehand, which gives me more blade to control the puck, but also a bigger area I don’t want to shoot from.
The pm9 plays from the heel and mid blade. 71 shoots from the toe. And you can pass off the heel/mid area, but if it rolls into the toe, passes can get messy (for me, anyway). 71 is more modern drag snap shot mechanics, pm9 is more traditional shooting mechanics.
Davideo, sent you a DM.