I know this iron  J Beam bm t 801 iron can’t be tested by looking at it, but its an interesting  great looking midsize blade from Japan,  the shape of  the back in particular looks like it could launch the ball up pretty well ,in your opinion what would you call a blade that looks like that or that shape than something that has a more defined muscle shape and also the new Callaway mb apex blade with a screw in the back does do anything or use for custom weights etc ?

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