Its not that hard to do 100 on an on ramp, i have seen and done it lots of times. ALL but like 2 of the on ramps in the city i live in are straight, and 2 are a "wrap around" type, they go back under the over pass, even those you can do 60 on, no biggie. And Dyno Jets are VERY reliable, if they werent they wouldnt be so popular. Thats like saying a honda isnt reliable, its all on the user as to how reliable its gonna be.