Definitely get ahold of Dan Horton aka "MeanV2" ........IMO he has the nicest ones out there. (Dipped to match as well)
Very seamless/ factory looking vs the clunky look of the STS.

They do make a big difference on any bow for eating up string occilation. So much so that its almsot not a fair comparison to compare 2 bows where one has it and the other doesn't.

(You'll see )