Sig stone idea

This is something similar to unawakening gem idea... What if you want to have more sig stone? What if you could just take out the number of sigs from a champ and convert them into class signature stones? Is this a good idea?
0
Comments
Similar to Rank-down tix, that they will not do anymore unless specific major nerf of a champ.
Or trading champs between accounts, will never happen.
You would only ever need 200 Sig Stones of a class (or 100 for 4*) then, and just keep moving them from champ to champ as you are using those champs in fights.