Looks great, can't wait to see the cab it's going on! How do you like the mini pac? Seems like all you guys over seas are using them, did you have to alter the molex plug for the Happ track ball or was it good out of the box? Also no problems with the supplied harness stretching across your CP?
Me and a mate have actually been building two cabinets at the same time (one each) and I have used the new minipac in both control panels. I got the one with the happ trackball harness and he got the standard one.
A few things I noticed when I started putting the panels together and wiring up the minipacs:
1. I had to switch the Y1 and Y2 wires for the trackball harness as they were reversed. This was a very simple thing to fix, although it would have been nice if the minipacs webpage indicated there was a mix up with the latest batch so I knew what to do when I got it.
2. The length of the wires on the supplied wiring harness are nowhere near long enough for a 2 player panel that includes a trackball in the middle. I knew this would be the case though as it clearly states on the minipac site that the wires are 320mm long. I ordered 2 sets of the 10pack extension wires thinking that "extension" meant add-on, but later found out that they are infact replacent wires only and mean you have to pull out 10 wires and replace them with the ones in the extension pack. This task was a bit more fiddly than I'd like and in my opinion it would be easier if they just supplied an extension pack which had wires with female quick disconnects on one end and male ones on the other. That way you could just "extend" the existing wires. (but that's just lazy old me

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On my mates control panel I ditched the wiring harness all together and used a long Computer IDE cable. This worked suprisingly well and I'd recommend this to anyone who is using the standard non trackball minipac. Well done to Andy for going with a standard 40 way pin header to enable this!
3. I initially had problems trying to program the minipac due to the fact that I used the wrong software. (stupid me). The Minipac will not work with the new Winipac IPD software, you have to use the Winipac software instead which is located in a folder on the supplied CD and not accessible from the bootable CD menu. This issue was a case of me not reading the manual

4. The biggest bonus that I found using the minipac is the pre-wired Ground harness. I spent ages wiring all the looped disconnects on my first cab and having a pre-made wire harness was fantastic. I only had to add one bit of cable to reach one of my pinball buttons and that was it. It definitely saved a lot of time.