Audioquest PT6 or mod'd RB250?

I'm trying to find out if one is significantly better than the other? The PT6 may have upgraded wiring. The RB250 is a Moth OEM, with incognito wiring, OL structural mod, and VTA.

Both would be used on a VPI HW19 mk IV with a Denon 103R. (tt arrives next week with the AQ mounted)

Here's what I've found so far:
PT6 -- some say it's great. Others ... not so much. I've read jelco made it and is very similar to their current 250 arm (not sure of exact model).

RB250 -- this was talked about very highly a few years ago when I bought it (never got around to using it). Has it stood the test of time?

Or...sell both and buy something else used.

thanks