heres my experience, i've had the LRD adjustable, Dyno-Port,
and the Trinity and an F7 (both same as CT),
it seems the longer the fat section of the pipe is, like the LRD and Dyno, the lower the powerband kicks in, and earlier it falls off.
the 2 shorter pipes...Trinity and F7 both "hit" later and pulled further up the rpm range.
overall top end power tested on both my blasters goes to the Trinity/CT/F7.
heres a few pics to demonstate what i mean by "fat part" of the pipe,
you can see in this first pic of the Dyno on the left, and LRD on the right, how the fat part of the pipe carries further back to the silencer connection......
where in this pic, the trinity on the right has a much shorter "fat section" which seems to allow it to rev higher ???....IMO