SNIP:

I have worked with some Sycamore burl. It was cut on a bandsaw mill and then run
thru a wide belt sander till it was flat and 5/16” thick.


SNIP
This is burl and the grain runs every which way. About 50% of what you see in
the pics is end grain. Very brittle stuff. For the tables I glued it to 3/8”
plywood, then planed it down to about 3/16” thickness of burl, i.e., a thick
veneer. Almost three years and the tops have held up well.

END SMIP

Very interesting.  Beautiful stuff, too.  I was considering using ply as well.
At 3/16ths, it is very close to my +- 1/8 stock.  What glue did you use?  I have
heard people who swear that veneers need special glue, but as I have never
worked with it, I am in the dark.  My inclination would have been to use
Tightbond II but the last thing I want to do is mess up a painstakingly built
piece by using the wrong glue.

Joe