What's the drawback on wheel weights? Seems like that and the portals are the best location since around half the weight that gets put there is at or below hub level.
Learning more about the hobby as I go, just got overdrive front gears ordered for my TRX4 and TRX4M. My Element Ecto crawls really well with the stock overdrive gears so far so I'm leaving that as is.
I've been adding a little weight here and there, but realized weight in different places leads...