There have already been people flashing there new uscc touch pro's and I haven't heard of any issues. Just make sure you unlock it first. The stock shipped rom is available too, so you can flash back to it if you need to return it or if you don't like any of the custom roms. Here's a link to it.
http://www.mediafire.com/file/04jntj...39959_Ship.exe
As far as which custom rom to pick...well, they're all so different. Just depends what you like. It's really easy to flash to a differnt one if you don't like Juicy's, so go ahead and try it. I personally always recommend Mighty's Rom cause i think it's most stable and fast.