re: Biscuit help

I used my biscuit joiner few times on cutting boards and today as a mater of fact.
I was joining to 2 pieces of 2×6 for the bench seats and I wanted to reinforce the edge glue.
I did like Bently showed.
When the pieces are smaller I usually but the against a fence.

I do put the 2 pieces against each other as I would glue them and mark both at the same time. There is always a little play for me. I was told to slightly wet the biscuit so the swell lightly and that should take care of that. I have not tried it.