you can also power them with a nifty battery if you choose to keep such a fast drive choice on hs, as most of them use rad drive
slaur iii should use shinies over granniegrip wheels, GGs are absolutely useless since a good 90% of the time you can get invertability with shinies alone, and another 5% of the time you can get invertible with rubber wheels which are strangely 1 kg lighter than grannies but almost as large.