I've been using bent axles along with the blue Pinewood Pro jig (the older version that doesn't have canted holes). I was thinking about getting the newer version which has 2.5 degree holes for next year's race, or using a pin gauge as a spacer in the one I've got to get the cant. We use a pin vise to drill so we don't wear out the holes too terribly.
But this would be sooo much nicer...
Sidebar - what's the advantage of 3 degrees over 2.5 degrees?
Honestly, I would not recommend the use of the Pinewood Pro Jig. The reason is that you really need to have a jig that:
A) Drills both sides perfectly aligned with zero toe
B) Holds the drill bit snugly without slop
The PPro Jig is made of aluminum and has an adjustable slide. I just have a really hard time believing that this is going to give an accurate drill, and I am skeptical that the fit with the drill bit will be good. Not to mention, with a steel bit, the wear on the tool is going to be rapid.
In contrast, the "good" drill jigs on the market use hardened steel bushings to hold the drill bit. These are precision ground and they don't wear down with use. You do, btw, need to experiment with drill bits to find one that's a dead-on fit. It's amazing how little a bit needs to move to wreck your alignment.
All that said, I have never actually used the Pinewood Pro drilling jig, so if somebody has, and have had good results, please let me know!
As far as 2.5 vs 3 go...I'm honestly not convinced there's much difference to be found in half a degree of camber. Seems most of the "pro" jigs go with 3. The original DW tool did 2.5. My suspicion is that somebody along the way came up with a number that worked and everybody just sort of imitated that.