Signature stones for Captain Marvel Movie

I finally have nabbed this champ, that I've been looking forward to playing with for awhile, and I'm a bit confused at what amount of signature stones I should put into her after I use an cosmic awakening gem. On AuntM.ai it appears as though 60 signature stones is her best build or is that too much or not enough to take advantage of her signature ability. I tried searching in forums but only heard a mention that someone thought 40 maybe was enough. Thank you again for any information you can give me regarding this.