Sounds great! What is an RPV and how long does the greased effects last?
I see you have already been directed to my post, it is a lot of information and perhaps a bit hard to follow. I started posting about this while I was still experimenting, researching, and learning, so unfortunately it is verbose and all over the place with conversations on several threads. I was thinking about just making a new clean thread with just the latest information, instructions, and final outcome in one easy to follow post. I might try to do that this weekend since the weather is kind of harsh right now and supposed to stay like that all weekend.
I greased my seals several months ago and now have three track sessions and about 8000 miles on it, and so far they are still going strong. I am on the same pads and was thinking if I don't notice a change in the pedal first, I will do a rebuild after going through 2-3 pad sets, or 2 years (which ever comes first). This is a DD so I only track it on occasion and usually don't go all out for an entire session. I am running DS2500's and MPS4 tires so you really can't push it to hard with those tires and pads.
The stock calipers also use grease on the seals, my stock calipers had 40K on them and the grease was still there doing its job (see piston retraction test data). So I would say a very long time, and for a car that only see's normal street use, probably more or less the life of the car (but again depends on usage).