Experienced rooters. Needle issues

Hello.

A few months back I bought some 46G crown needles from an Etsy seller. Im trying to root a doll and the needles are leaving noticeable holes in the head.
I don’t have this problem when I use single barb 42 g. So why are the 46 g leaving holes?
I am at a loss.

I have noticed that the actual size of the needles vary a lot. And it also vary with the number of bards.

Hmmm. Good point. I will have to compare them. I can’t use them anyway if they keep leaving holes so it looks like I wasted that $