Lighter heads

[Whynot]

Hi all,

First post, and wanted to find out a little more about Mizuno custom fit.

Is there a specific threshold for when the lighter heads are used in irons? Should 0.5 over be enough for them to be used?
also is there a way to check if they have been used, maybe something in the serial number?

Thanks!

 

[MTR]

AFAIK they are normally used when going more than 0.5" over length, but you can always request them in your order. I don't think Mizuno keeps build records for long after the order has been build & accepted, but that could have changed. You should be able to determine A/B head weight through the combination of length, total weight and SW taking into account the shaft & grip used..