Has anyone had experience with the OOTB pile cap families? It seems that they work ok until I try to swap out the piles for a different size. I can adjust the length, width, and thickness of the cap no problem, but as soon as I try to change the pile size from the default 16" to say, 12", it goes crazy with the constraint error.

I tried editing the 5-pile and it was fine. The 7, 8, and 9 all went haywire. I'm pretty handy with the Family Editor but I can't figure this one out...