G pause

Two days ago I stopped using the g's.  Jack was getting a rash on his bum and I wanted to see if it was from the g's or something else.  I started using the 7th Gen dipes again and it still hasn't totally gone away.  So, perhaps it's not the g's.  However, then we ran out of the 7's and had some Huggies Pure and Natural left over....the second we put one on he starts scratching his butt.  So, I went to the store and got some 7's and some G's in a medium.  I still haven't called them to ask about the fit, but after looking at the sizing criteria again, I think the mediums might be the answer (ps. the dual pack of G covers has a $5 off coupon if anyone is interested in trying!)...update coming soon.