LoadUI PRO 3.0.0 Max Heap

What is the Maximum heap setting for LoadUI PRO. We are trying to evaluate the use of LoadUI PRO for our performance testing needs, and are not able to do so with the defaul of 900 mb RAM. I tried varius settings in the VMOptions file, right now at 2000 mb. ReadyAPI will not launch.

Are we supposed to use one of the half dozen or so BATCH files?

We are running on Windows 10 64-bit machines with 64GB of RAM.

Thanks,

Randy