I just made the modification myself but I realize there is nothing left from my original 2010 compstick except the lines...
I liked the below the bar trim, that was working quite well, but the swivel was not working anymore and all the replacement depower ropes I tried were wearing too fast and/or were not properly blocked by the cleat
I bought a clamcleat 18 EUR, red stopper ball 1.5 EUR, antal ring 13 EUR, I cut the 5mm depower rope in two, I buy it about 3 EUR per meter. Here is the result:
I have reinstalled my old 2009 SS chicken loop with integrated swivel. Haven't tried it yet but I am pretty happy with this extremely simple design