They have a 3 degree taper and are slotted to just below the shoulder. This is the description I found on some Ivory bridge pins that I want to get ... Will they fit the larrivee?
Take a look at this website:
http://ivorybuyer.com/sales/gpin_sizing.php (http://ivorybuyer.com/sales/gpin_sizing.php)
It has the size information that you are looking for for bridge pins. I believe that Larrivee uses a 3-degree tapered pin.