O/U to SxS gun fit advice needed

[Andy]

I didn’t intend to be nitpicking with the original post. I was just curious if there were general guidelines to use one fitting for both types. I found a beautiful AYA that I loved but it only had about a 16th of an inch of drop between comb and heel I just didn’t think it would work for me so I didn’t buy it. But I think I’m a pretty average person at 5 foot eight and 170 so most guns off-the-shelf fit me except for length of pull tends to be a little bit long. If drop is 3”+ it’s game over for me.