Feeling your pain.. after my wife convinced me to buy the fancy Taylor Byzantine strap (made by Levy's).. I found that it was near impossible to get it on to the strap button on the neck heel (a 1998 415 jumbo that never had one installed). It was because of the location that the local Taylor shop put the button on.. and the thickness of the strap. I believe that I eventually had to slit the opening a little bit more to get it on. It's funny, but I keep going back to an old Gibson suede strap that fits like a glove..and the fancy, expensive, Byzantine strap just sits around and looks pretty. Hope you get your problem solved... plenty of knowledgeable people here to help.. as you know!