I used Earth Wolf with Rock Leo's metal centre thing. The wide tip of EW's base meant its a lot more stable and lower to the g8so it spins longer, combine that with the raw attack power of RL's ridged centre and you've got an undefeated beyblade.
I had an alternate version of rock leo, the outside was completely smooth and coupled with one of those wide but pointy tips means you stay in the center of the ring as an indomitable pillar of beastliness.
The only noticeable thing is how her boobs low-key touching her belly button