I've taken into consideration of how the whole format works, but I see SOME corruption, involving how limited the range of competitive combos is.
With that said, I have an algorithm that should be used in order to decide which parts should be banned or not.
With the algorithm, i'll describe why R2F should be banned in limited play with describing each part of the new part of the algorithm.
1:
LIMITATION IN IT'S OWN INTERMEDIATE RANGE How many parts of it's own type does it outclass, and do those outclassed parts have any sort of network of traits that are overshadowed because of this part? In r2f's case, there is a severe indenture here. The flat system is the widest range of variety in performance tips. Mf and hf are excellent at retaining stamina, wf and xf are pretty darn fast and can be very lethal on the proper combos, the semi-flat/hybrid flat (fb, cs, and fs) system is good for calm or transitional movements, and cf, gcf, and q are wonders at the unknown. However the ironic thing is that despite these benefits, R2F easily beats them all because of it's speed and friction. As good as it sounds, look at all the tips R2F has outclassed.
2:
ABILTY TO DEFEAT PARTS OF OTHER TYPES
Is this part able to win against the part of it's inferior type, but lose to the superior type at a stable ratio?In R2F's case, not exactly. Almost all other performance tips can be ko'ed by R2F, this includes most of the ball family, most of the sharp family, and if used correctly, most of the defense family. Going back to step one, you can see that r2f outclassed almost all the flat family. with its said power, it is easily able to tap into defying the reasons for other parts, meaning that it mainly constricts the variety of choice. If trying to create a limited defense type without a rubber tip against r2f, don't expect to win most of the victories, and if you do, it'd be most likely similar to a 51:49 ratio.
3:
CONTINUOUS USAGE ON BEYBLADES Is this part being used on most beyblades of it's type? If yes, that is a clear indication of a part that stands out of the metagame. If you look at the list of competitive limited combos in attack, r2f, rf and rsf are the only three. This means that there is some reason for that part being used: it is able to defy metgame rules. If a beyblade is to be competitive, it should be a choice of what combo you think will be strong in the pool, versus finding a beyblade that is designed to defeat that one part. If you notice, the mainstream of defense types and defense combos are heavily vulnerable to r2f, motivating it's continuous use.
Now, for an experiment for you to try with this algorithm:
1: Get three beyblades: one limited attack type with a tip that isn't rubber, a good limited defense type without a rubber tip, and a good limited stamina type (I used pegasis 85 gcf, Bakushin Aquario r145 mb, and Earth Cancer B:D)
2: Do 10 battles of attack and defense, 10 battles of defense and stamina, and 10 battles of attack and stamina; record the data
3: Then, put r2f on the attack type. repeat the procedure as stated in step 2.
4: This is optional, but put the r2f on the defense type and repeat step 2. Then, put the r2f on the stamina type, and repeat step 2.
5: post the data in the replies
Balro gang