Hey There,
We shot Sparta last year and it was a blast. We will be there again this year with my buddy and his family and a couple friends also.
Be prepared to be out there 4-6 hours each day as it is usually pretty slow, that is unless you get there right when they open the doors. Make sure to have plenty of water and some snacks and bug spray, although I don't recall the bugs being horribly bad there last year. The wife and I will be toting stools at the Sparta shoot this year, to carry water and other essentials instead of the monster fanny pack I used at the Duluth shoot a couple weeks ago.
Pre-register.....You will save a little money that way.
Make sure you have enough arrows with you. There will probably only be a few shots where you will have to be worried about losing an arrow, but there is also the steel challenge and iron buck that are side events that may cost you an arrow or two if you participate.
If you have kids that shoot, bring them. These shoots are typically set up a little on the easy side and have stake for youth shooters. It's a great time for all ages.
Glen