Could've Femto been stronger if it wasn't for Guts and Casca?

I haven't read the manga yet, but could Femto be weaker because Guts and Casca survived? I remember Slan saying that the more willpower and effort Guts put in, the more he would become a valuable nutrient for the new son of darkness (Femto). That makes me wonder if it was thanks to the souls of the band that Femto was able to be born as he was born, if each of them strengthened their own strength more. If Guts and Casca had also served as food, Femto would have become more powerful, and if so, can Femto be weaker because of the failed sacrifice that was Guts and Casca, could that be a weak point?

I haven't read the manga yet, but could Femto be weaker because Guts and Casca survived? I remember Slan saying that the more willpower and effort Guts put in, the more he would become a valuable nutrient for the new son of darkness (Femto). That makes me wonder if it was thanks to the souls of the band that Femto was able to be born as he was born, if each of them strengthened their own strength more. If Guts and Casca had also served as food, Femto would have become more powerful, and if so, can Femto be weaker because of the failed sacrifice that was Guts and Casca, could that be a weak point?