My routine is the same for both casual rounds and tournaments: 20 minutes on the range and 10 minutes putting. I know from experience that trying to warm up for longer for tournaments than I would any other day just gets me out of my comfort zone, which is huge for tournament play.
Hmm....I'm really not sure. I remember when I used to be able to get brand new ProV x-outs for $19.99 which was a steal, but with those you knew they were brand new and were identical to the $48 ones. don't have that much experience with refurbished balls, but I do know that the cover seem to come off pretty quickly on them. The VICE balls that I am using are very durable.