15-001 vs 15-002 channel balance shoe

A home owner from San Carlos, CA says:
Other than the dimensions, is there a way to determine whether my channel balance shoe is a 15-001 or a 15-002?
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Casey from SWISCO responded:
The 15-001 measures 1-1/8" deep where as the 15-002 measures 1" deep. Go to the product pages to see the detailed measures and compare to the shoe you are replacing.
A quick learner says:
Thanks, I've been there and done that. I'm just a little unsure as to whether I'm measuring the dimensions correctly, since the shoes aren't shaped rectangularly :). For example, is the 1-1/8" depth measured at the widest point of the shoe? If so, then I think I've got a 15-002.
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Dave Sr. from SWISCO responded:

Comparison of the S351 and S390 balance shoes.
Comparison of the S351 and S390 balance shoes.

I hope these measurements help.

A quick learner says:
Yes, they do. Thanks!
How to Replace a Channel Balance Attachment
How to Replace a Channel Balance Attachment
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