Quoted from bsbdmd83:

The GI is less bright but honestly on this game it doesnt make a difference truly. There is so much pop from the RGB system. As to when you do it, I think its personal preference. I just finished it and I took about 3 days off and on. ( did have to wait on some things not in box- fish paper) Just meticulously follow directions and youll get there. I did mine preventively as I had no probem with the 7.5 buffered system.

Quoted from zaphX:

First time I did it, 2 days 10hrs/ea
Second time, 1 day 15hrs
Third time, 1 day 9hrs
It is worth the upgrade and increases the value of your machine. Also it's good to get it done to be sure all your parts work, while they are still being made.

Quoted from bsbdmd83:

Well I didnt cut wires, I saved all and sold everything as a package. So first day I removed all large boards and wires and the individual leds. Had to wait on some fish paper since i only got 4 pieces ( could have used electrical tape but has other things to do). Replaced each large board as I removed, used the map or wires and guides to position new single led boards, used the dimple tootl and drill holes and mounted. Going in ordeer as I removed and labeling new boards with sharpie.
Second day was removing and replacing boards in castle playfield and munchkinland. Not hard, take your time and dont force anything. Hardest part was getting all the new wiring down the holes while lowering playfield and not trapping anything underneath. The raindow board is the worst. They do send new plastic rivets but do not send new rubber push through washers that attach the board to the plastic with the black filter sandwiched in between. Would have some of those on hand before you try.
Third day fish paper arrived, finished the single led boards that require that and the ran started running rgb cabling. The cables look very similar and the inventory drawing is a small picture and hard to tell. Follow the diagram to see how many leds are connected to each string and count the connectors on the strings and you can figure it out. ( Would be nice if they were numbered).
Last are the Cat 5 cable and they are simple. The directions are pretty good. Would add that when you get to the step of removing the toto lane and haunted house cable, it says to leave the cable in machine as this will be used. This isnt that clear, but you will need tomake sure you have some play to be able to run cable to the WOZ7 board in the lower left corner ( playfield upright).
I would say total hours was 12-15.

Quoted from LTG:

The I/O board in the metal box. Standing in front of the machine. Lower right side are two USB cables. One for switches, one for old lights. Did you unplug the one for old lights ?
Trial and error if you need to figure out which one is which. Turn game off. Unplug one. Turn game on. No change ? Then turn game off, plug the one you unplugged back in and unplug the other. Turn game on. See if that works.
And there has been reports of B.A.G. boards out there not programmed. You'd have to contact jjp about that.
LTG : )

Quoted from bsbdmd83:

They proactively changed my bag board out once I received my kit so they may have missed you. LTG is right they were some that went out unrogrammed from the factory.

Quoted from TheShadowsNose:

I actually had to get a replacement for my replacement BAG board as the replacement was DOA. But they were pretty quick about it.

Quoted from TheShadowsNose:

Not sure. I believe it was the first round of new boards this year. Ordered in January and they showed up sometime in summer.

Quoted from HereToStay:

Thanks. I put in a ticket with JJP. They want me to send it in for repair. They said they’d try to keep it under the 15 minute minimum to keep costs reasonable. At least these boards might be repairable.

Quoted from bobukcat:

Turnaround time will be interesting to see as that equates to the game being nearly unplayable.