I have never been a real believer in the use of biscuits in the glue up of large table tops or wider sections in general. Especially where end grain and long grain must be glued together. However, I have never used them either.
I’m very old school and have always defaulted to Mortise and tenon and have often pinned those joints with dowels. It strong, its reliable, if time and proper procedures are used to make the joints properly. That’s the downfall this construction method is very time consuming.
I have looked at a number of biscuit cutters and the amount of penetration the biscuit allows, attended a few demonstrations and I remain unconvinced that I wont see distortion of the lamination over time, if not the breaking of the biscuit its self. It seems like a great alignment tool, and where you need to only rely on the strength of the glue, it might be ideal.
The time savings, using biscuits is impressive, but still. I’m sort of lazy, I want to do it once. I don’t want to fix it.
What are you’re thoughts? Any real experiences I can draw upon?