Could you explain this please? What kind of blades won't fit?
Hard to explain without pictures, but I'll try.
The tendons of the Beuchats have the standard "T" groove; however, the groove is much narrower. Tried to fit C4 Falcon, Mat Mas fiberglass, & Waterway blades in there with limited success. Even with the normal process of bending the tendon backwards to seat the blade mini-rails, the process is difficult at best.
The blades themselves are slightly different as well, with the tongue (portion past bend that goes into pocket) being longer than standard. This is good as it provides more rigidity and power transfer. It's bad, since aftermarket blades can't seat all the way in, or the blade's bend will not coincide with the pocket's bend.
Last thing - since the tendons are more flexible, they don't create a perceived bend like Omer/Sporasub pockets. As you know, when you put a straight blade like Waterway in those, the hard rails give an angle between footpocket and angle. When you put a straight blade in the beuchat pockets, they stay relatively straight inline.
I like the Beuchats, but with rising prices and a new US distributor adding an extra layer of cost... looks like I might have to find an alternative. :angry5: