Channel Balance

I have taken all the dimensions and compared the parts and the main concern is identifying the top balance piece. I think that it's a 19-005 but your part comes to a point at the end while my part is flat at the end (all other dimensions matched).

I believe the balances that I need to order are Series 380 30" (has 15-005 and 19-005). I will also be ordering new top sash guides 18-166 Kinco. The part appears to match with the online dimensions. Please ensure the 18-166 works with 19-005. One other thing that might help confirm the part....the balance is marked with 29 4 CX CMC 11.

Thank you,
Donnie