Virtual pinball has always intrigued me. Can't replace the real thing, but if I had one loaded w/a bunch of tables on it I'll never own (due to space, money, etc.) next to the real pins - always seemed like a neat idea. I saw some videos of the 4K setups and I admit, they look amazing. Ditto on the physics too - impressive. I haven't read the entire thread here, but I've checked out a fair number of web sites devoted to the builds...seems like a lot of convoluted info. Somewhat hard to pick which way to get started and build instructions look like a lot 'bits and pieces' at times. Rather confusing!