Although Paramedick is well respected and a gracious person for voulenteering, I feel I should mention there is access to the "professional route".
Oliver Wegener, the crew chief of RallyVW will be there installing nozzles in tandem to Rocketchip. The main benefits I would say is that he has all the tools and has done nozzle swaps professionaly many many times before. I think he only charges 50 bucks, although I think the job is worth well over 100$.
I think he can also pop test, not sure if on site though.
He did my car, and I am happy as pie with it (as well as 15 other things).
I know that nozzles are supposedly easy, but I would much rather have a pro with extensive experience doing it.
If you do decide to do it yourself dont forget to replace your fuel lines. I dont know if you have to but I am pretty sure oliver did it on my car and am not sure if I paid extra. I was also changing my fuel filter at the same time. Which I must say is an excellent opportunity to do that!
Also you made a wise choise with the PP520. Kudos to you for not taking the easy road with the Sprints. Its says alot, the PP's are always backordered. I had to wait 2 months.
Paramedik, you are a good man for voulenteering and I look foward to meeting you, just throwing this out there as another and easier option for both of you.