Pivot Lock Shoe Thickness and Pivot Bar

A home owner from Colorado says:
I have a Pivot Lock Shoe that looks like 15-047, including the black cam, and matches all dimensions except for the thickness. I measure 9/16 inches with the cam fully recessed for raising and lowering the window. With the cam extended when tilting the window, I measure 5/8 inches. The channel housing the Shoe is 5/8 inches deep. Does this sound like 15-047 is correct?

I have a Pivot Bar that matches 26-063 in appearance and dimensions. Several of the these bars have fractured completely at the rectangular cutout. Item 26-040 matches the dimensions of 26-063 but does not have the cutouts. This appears a better choice than the original that came with my windows since the weakness introduced by the cutouts is not there. I do not see any purpose for the cutouts in my windows. Do you see any reason why 26-040 would not be okay?

Thanks for your help. Your web site, videos, and discussion for users is great.
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Paul from SWISCO responded:
After careful consideration, I think that our 15-047 would be a good place to start because you need a little play on thickness for a pivot shoe to move up and down comfortable. I also think that our 26-040 should be okay.
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