I totally dig Todd's reasoning for his t track shape (taking inspiration from real world asymmetrical cabinet track). I use his track on my ANH sabers since we will probably never be able to confirm the profile of the grips from that era. ESB forward, though, definitely requires symmetrical t track imho.also, Todds Costumes has track thats cheaper for those of us in the states. it also has a different profile, he talks about this on his site.
Roy's grips are definitely more accurate for the track we can actually observe (ESB- era forward) and I like how he's shown all of the photo matching that he's done. I never noticed the color difference between Todd's and Roy's tracks, though *rushes to display case*I like Todd's t-tracks but, I've said it before, I prefer Roy's. Todd's are nice and affordable and, depending on your mileage, more accurate but Roy's are just a shade darker, feel more robust, and, despite being "less accurate" being symmetrical and all, I can lay my tracks in nice, even orientations on whatever it is I'm working on. I recently had to re-grip my Heiland ESB conversion with Todd's and, though doing my best to lay them evenly spaced from one another, it still looks a bit wonky because the ridges look off kilter because exactly one of the sides is shorter than the other on all of them.