Actually I wanted to see how time consuming it would be. Wasn't as bad as I thought it would be. The new eprom is socketed so I can use it for future test games. I also finally got around to installing the 8bitdomain video mod into the 7800 I bought from someone on here second hand a long time ago since I had to get the soldering stuff out anyways. It took a little long, since the I had to move wires around in the video plug since it the video jack was not wired correctly. Currently I am only using composite, so I just installed the one jack with the four wires and use it for audio and video since I had to move things around in the connector anyways. Can always add Svideo later. Works good though. Pokey sound, sounds a little quiet in Beef Drop though, not sure if that is the ball blazer board or the video mod.
Yes, I had done something very similar with Beef Drop and Frogger, except that I had a 7404. Those carts work *wonderful* with that setup of those two games.
I wish I would have known you were going to do it that way; I would have either sent you the boards or done it for you to save you the trouble.