A follow-up to this question.
Geth's fast sync is one-shot. i.e. once we have synced some of the blockchain, we cannot use fast sync anymore. Is this the case for Parity? I ran it with warp, then without warp, then with warp again. It doesn't complain, so I guess this is doable in Parity.
One other issue I notice is the number of peers are way lower when I run parity with
--warp. This is strange. Is warp sync exclusive? i.e. some nodes are warp, some nodes are not? Or is it just a coincidence whenever I run
parity --warp, I find less peers?