That's a tough call but you could look at it as a way to get two units running with that purchase.
What I had in mind was if you buy that V9 you could take that laser out and put it into your V4 and get it running (keep in mind it would have to be adjusted as far as the sled height and azimuth). Then you could probably put that new 400Q into the V9 and get it running (the reasoning behind this is that I have seen a lot of info saying that the 400Q lasers do not work well in those older units, but if I remember correctly the 400Cs work OK).
Then again, if you have sent your V4 to Rich then I would say just wait to hear from him. He has been monkeying with these things for a long time and I wouldn't be surprised if he could pull a rabbit out of his hat and get it going for you. This may be the easiest solution seeing as how you already have the modchip installed in that machine.
If he gets it going then you could play with that V9 at your leisure. I was playing games off of the hard drive of V9s long before I ever even considered using a modchip. Just pick up a PSX game and cook up a memory card exploit for it and you can have roughly the same functionality.
Also it should be mentioned that I am running out of beer at the moment and none of this may make any sense at all...
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