5/8" Sash Guide?

A handy person from Colorado Springs, CO says:
Hi -

I ordered and received sash guide #18-188. Unfortunately, these aren't working well because they are a bit too small/short. I am struggling to find the right ones.

I don't know how to identify the make of my windows, I'm afraid. I have attached images with measurements and comparisons.
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Paul from SWISCO responded:

We believe you have a Migard window because your old top sash guide looks very similar to our 18-188. The major difference, as you've seen, is that the depth comes up short. Instead, we suggest you use the 18-009 top sash guide and trim the three thin plastic edges at the top where they protrude past the main body. I've done this myself and find that it works perfectly for the Milgard non tilt window you're working on.

A handy person from Colorado Springs, CO says:
Thanks very much! I'm no Bob Villa, but I can manage that. :-)
A handy person from Colorado Springs, CO says:
Just wanted to follow up -

I followed your recommendation, and these (trimmed) 18-009s worked perfectly.

Thank you again!
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Paul from SWISCO responded:

That's great to hear! I'm glad you got it working. Please let us know if you ever needed anything in the future, we're always here to help.

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