I know what you're thinking but I'd advise against it. At least most of the guys we play with prolly shouldn't try leaning over a stadium for fear that gravity might pull a little in the wrong direction once too often, the back'll lock up and BAMMMMM!!!! There you have a smooshed stadium and a hand thru the 620!?!?!?!?!?! Must be a bunch of skinny guys in Texas if they do it with RR's Stadiums!!!

• Anyway, I think yo need a supersized piece of foamboard, one that would fit under the entire stadium when put together.
  
• Then you cut out the middle to fit exactly on top of the edge of your field - 620 or whichever field you're using as BIGLOCK FIELD.
  
• Using the middle you just cutout, cut them into strips that will be used to support the foambaord with your stadium on top of it. So the height would equal that of YOUR gameboard plus the 1/4" or so for the foamboard. I think Jerry hotglued them in place and then fanned them around the entire field for even support all the way around. Ya might wanna use 2 sheets of foamboard now that I'm thinking about it: one as the base/foundation and one as "ground level" with the cutout in it. Then sandwich the cutout supports in between the two. I'd prolly use green for the top and the bottom one doesn't matter.

Personally, I'm digging that setup that Wally just posted!!! Can you say, "Use whatchya got!?!" I knew that ya could.