SWATHDRIVER: Have you installed metal tracks on any of yours? I have on the non-ss tiger. I upgraded the motors and went to metal gears also. It runs fine except for turning, on gravel and especially on grass. I think the added weight causes the tracks to dig into the grass a lot more than the plastic tracks and it will stall out. I have to back up to be able to complete the turn. On concrete or other hard surfaces it is okay. I'm thinking now about going back to the plastic. I know the plastic is more easily broken, but I have plenty of links because I bought an extra plastic track set also. I may try the metal tracks on the new SS tiger but I would think the results would be the same.
If you have experience with the metal tracks, or anyone else reading this, I would like hear your impressions.