Looking at different types of muscle back blades out there like the Titleist 714 Ping Blueprint Mizuno mp line Callaway apex blade Taylormade TW or any other type of blade with a thick muscle pad in the back but thinner upper half and comparing them to a Srixon 945 ,965 or irons with a lower muscle that sits low also with a thinner upper half does the  thickness or lack  of thickness where the muscle is has anything to do with feel ?

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