I’m not quite sure what you’re asking with this question:
You’re question seems like you’re asking about clipping off and discarding something that’s part of the original Wyze product. Is that what you’re asking? I didn’t discard anything that was part of the original strip. The connector at one end of each strip allows you to plug the strip into the controller. Maybe you’re asking about something else?
In the other topic, I linked to the product I bought from Amazon and used with Wyze Light Strip, which is a 4-conductor (“4 pin”) style of strip. If I was trying to do it with Light Strip Pro (which you say you have), then I might consider trying the “3 pin, 10 mm” version, since I had good results with the “4 pin” style, but that would depend on my particular application and the effect I was trying to achieve.
Note when you look at the strips you can see the conductors roughly every 10 mm (4") with a 
icon marking the place where it’s okay to cut. I used this (the knowledge of how many 10 mm segments I had available) to help me divide and distribute the available LEDs across the under-cabinet areas I wanted to illuminate in order to get relatively even coverage for the desired effect. I used all of the available strip material (2 of the 10 m Light Strip [not “Pro”]) and made cuts only at the indicated places. At least one of those cuts involved cutting across existing soldering points where two strips were joined during manufacture, but I was still able to use the solderless connectors and 4-conductor wire to join the segments as I wanted.
I don’t know if this answers your question or not. If you have specific questions about your particular application, then feel free to share those.