I went to the web site but didn't see anything about fitting the acoustic/electric end pin jack. What is the diameter of the hole when the strapped is locked?
Pretty much the same as mine but I use decorative conchos to connect to the strap...six of one, half dozen of the other I suppose...
Mine works great...I don't know about the other ones that are advertised....
Here is my answer to this dilemma. I make special adapters to fit the end of the regular strap with a decorative concho that screws on. The other end, I punch a 7/16" hole and 3/4" slit that properly fits most end pin jacks. Using the adapter instead of cutting your strap allows your strap to be used on a regular strap pin as well if needed.
March 2013 this is still a problem and a web search shows only 1 company (Pearse) that makes strap with larger holes
But why buy a special new expensive strap when yours is still fine and excellent.
I would try this:
Sandwich your strap end between 2 thin boards. Clamp them together tight. line up where you want the drill bit to pass thru the strap hole. Using the proper size drill bit (sharp) to fit the fatter jack end pin, center and align and drill into the wood and thru the strap hole. The wood prevents tear out and keeps leather hole clean and edges sharp. maybe experiment on scrap leather first.