So I want to take my scx build to the next level and maybe do compitiotions with it. I've head that one of the best thing to do is get weight down low. So I was thinking of getting aluminium axles but they can gall when they drag on the rocks. I was also thinking of getting dual stage foams and alien compound tyres and a lexan body. I'm just wondering if the effects are noticeable enough to garner the price.