Well, in my company, we install our Kitchens with silicone under the slab, it will not bleed through a 1 inch slab. Plus, our slabs are finished with a resin and bonding sheet to keep the slab from cracking as much as possible.
The liquid nails is a fantastic bonding glue, but thats the problem if you ever need to remove the top for a new sink or other work. It pulls the plywood right off the cabinet tops every time. Not to mention those little corner braces from the cheap HD cabinets.
The silicone holds it down really well, and lets the wood underneath move because of it's flexibility. Plus it is easy to break the bond with a putty knife between the materials, not so with that really good glue.
Good luck in your granite adventure.
And finding out what your installer will warrantee in writing is the most important part by the way.