do up a search on the forum and there are many many posts that are for newbie to baitcasters. As others have said, the braid is kind of hard to learn with ... I started off spooling on some higher dia. mono to practice with (as mono is stiffer it's easier to undo the birdsnest). It's up to you ... but if you get a really nasty birdsnest you might end up having to cut alot of the braid off and waste that line. Mind you everytime I get one I take the time to undo it ... no matter how long it takes, it's whether you have the patience to do that or not i guess.
Another tip, you probably have read this one before ... for practicing, pull enough line out for you to make one cast, and alittle more, then put some tape on the spool... this will prevent the birdsnest to get humongous when you do screw up on the cast.
Good luck, i use the baitcaster ~75% of the time when I'm out on the boat now. Still not great with it yet but prefer using it over my spinning set up.