Question on proper balance length to order

A home owner from USA says:
I have 20lb Milgard non-tilt-out windows. I believe I have identified that I need S385 with the 19-005 top and 15-004 shoe. The metal section measures 32-3/4 in length, so I'm not sure whether to order the 32" or 33" length. If I use the 33" length then I need option 3230. If I order the 32" version, I think I need option 3130

I have enclosed pictures of the top, shoe, length, and markings. The shoe is 1-1/8" deep, hence the selection of 15-004 rather than the S380 with 15-005.

What do you recommend for my choice of length, 32" or 33"? The 15-004 shoe looks a little shorter than the shoe in my picture, So maybe the slightly longer 33" channel will be the right choice?
User submitted photo of their window balance.
Profile picture of Tom
Tom from SWISCO responded:
Hey, Vito. This is not our Series 385. This is actually a special balance that we will have to custom make for you. Can first tell me how many you need? Once I know the quantity, I can send you a custom ordering link.
A home owner from USA says:
Thanks for the response. Please send me a quote for 5 pairs (10 total). Since this is custom, do you have all the info you need or do I need to send any other pictures or measurements?
Profile picture of Tom
Tom from SWISCO responded:
Nope, we have everything! I've emailed you a custom link. Let me know if you need anything else!
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