help

[honda guy250]

im going to try racing ftr this year. ive never raced before and need some advice. first off, i have a 2006 kymco mxu 300 (its a ute) i am 21 years old. yes i am a begginer but consider myself pretty good. what class would i be in or should i be in. secondly, what is the difference between a hare scramble and a quad scramble, which can i race or can i race both. third...i also have an 03 warrior im rebuilding, if i finish it during the season can i switch classes or ride two classes. also where can you get a tethered kill switch. any advise would be helpful and appreciated.