I second those . Track Addix is a great bunch of guys. Well here's a brain dump and a half about the same as those above..I have done about 30-40 track days? Addix likes more addicts so they almost always have that free ride to get more hooked on crack (oops - track).
Omaha is less strict by a long shot. I think I have only been inspected there maybe once? Being a flat track with more curves its not nearly as fast. That said I have wiped out more at Omaha than HPT. I think its the barriers too that slowed me down on the chicane at HPT which are not at Omaha, which then I don't fear wheelies out of the last turn which then leads to wrecks on my part a little ways down from there...
when I set the grass on fire and then landed in it, laid there wondering why the sky was orange.... Omaha also used to have half price weekdays which where usually empty and open to run at your leisure. Monday? Wed? This track (as of a few years ago) was rougher than HPT. Also I have not ridden on it since the big flood up there a few years ago. If you are looking for putzing after taking some classes and your a safe knee dragger, Mondays are nice - you can get in a 100 miles easy on a cool day. They have gas on site.
HTP a few years back the drag strip was in the track. 10+ years ago before they lowered the hill and made smoother turns down at 1 & 2 it was a much more dangerous course with the new pavement. Coming off the hill you where often wheeling when you needed to be braking (leading to wrecks) if you didn't notice how light the front was, well then, track closed for a bit, and you get the "ride of shame" on the back of the trailer with your bike assuming you could stand. Never crashed there but a lot used too. The chicane was a bit scary at the end, but at least it was wide. HPT is nice tech track.
If you fear the barriers - go ride Brainard! Its got barriers that will make your eyes pop out on turn 9, first gear head first into 10ft tire wall with a bridge over your head, 90 degree and narrow, and you and three other monkeys will be going way too fast side by side into that 15mph corner and come out on wheelies heading to the dragstrip. Its a skid mark city in all kinds of ways (lol). Its also (well used too) have NASCAR turns & 2 where you could hit top speed up in the clouds on. They tried to get people to take it a bit easy on those with the story about the racer who they "found" out in the marsh but never found his bike. I always had trouble going faster than 150. Never liked it. Even there where it seems slow. The sand on turn 4 is nice to slide in.
There was a boat shop across the street that can repair anything and get you back out there in 30 minutes.
You can get great used leathers if you know what you are looking for on ebay, or craigslist. If your serious get a 1 piece, they are much safer. Get vented boots if you can with the hard sides/tops for $300, its gets blazing in the summer out there on the tarmac. Get a back protector, get hard armor on the elbows and knees. Get gloves that have two sets of Velcro, your hands are worth it in a slide. Take a class at HPT or Omaha. Classes are worth your time very much so. Read Keith Code's or someone's books about trail markers on the track. You need to understand marker points (oil spot, crack, whatever) for each corner or your just lost out there. Suspension is important, hp less so. Your suspension and your confidence are worth another 50hp easy. Air pressure (19-22 give or take, depends on air temp, don't just do a day at 36/42 and turn your tires into sponges). Summer riding can boil the brakes, switch to dot 4 on sintered pads (this is fine for the street too). I'd get a 750 Suzuki or something less than the liter bike land missile I had, you can tell a 600 by the way they just blast out of the curves and then see the liter bikes roar later to catch them. Curves are the fun part, so get a smaller bike. Any idiot can do 160+.
I only went for entertainment never racing. Often classes are free or $50 extra- take them! Those racers will let you follow them - you learn more in 10 minutes than a lifetime on the road. I followed a guy from Chicago once and went from dumb ass noob (even after some classes) to a being able to drag knees anytime any place hang off the bike like a monkey for fun. It just clicks when following someone on the right markers/lines and you trust your bike and your self.
There is what I remember. Its probably worth what you paid for!