Agreed
Hollow axles don't feel right to me
I think tiny wheels is the best way to lighten up for flip tricks
I'd be curious to see someone weigh the exact same trucks but one is new and the other is super ground down
Re weight of well used trucks? I haven't put any on the scales, but yes I think a few sets I have from trade ins that I have flattened out the hanger to remove the grooves seem quite a bit lighter overall than the brand new versions of the same products.
I guess even looking at how solid the Indy Mid hanger is, with all that added weight, then something that is almost to axle and rounded off nicely too, which I can do as well, those things have way less meat on them, so it would make sense that they would also be a lot lighter.
A set of very well used Ti Indy 149s are the lightest I have ever skated, way too light for me, so I put them on some solid cast baseplates and a more solid deck with bigger wheels and it works out pretty well now, even if it is a bit lighter, it is not too light as a complete.
* Removing grooves is fairly easy - have the board set up, then remove the wheels, so it is just the axles scraping back and forth on some rough concrete, then lift each kick to round them off a bit more and lastly use excess griptape in a strip to really get a smooth finish on the hanger and make it look nice and flat across the top while still rounding off the worn area a bit more. They don't look like new, but they do still skate fine and I don't get caught in someone elses old grooves either.