Thanks for the information Kyle and i'll take a look at the link aswell
so i'm guessing parabola's are basically airtime hills like the one you linked to on rcdb with intimidator?
At the moment i'm a long long way off anywhere near finishing as this is just a basic guidline on what i'm wanting it to look like so I know I can start with the drop and I think I get ya with the radius
i'll take a look at a pov of Intimidator at Carowinds to get an idea on drops and such and when I get back to the turn around i'll post the update
going to be lots of work but the result will be worth it as I like to say.
So my airtime hills at the moment i'm guessing are a little sharp at the top and need spreading out a little?
Once again thanks and I will most certainly take a look at the link.