Once you slap a pipe on there, it's pretty damn hard. I was 175lbs and my ass was almost literally over the handlebars on my friend's Blaster when he had it and that was about the only way to keep it from taking off. Even then the front wheels will slip off the pavement and want to throw you sideways a bit.
going to have to disagree with you still. if you know how to use your wieght, the clutch and throttle, the front end shouldn't come up without you wanting it to.
for trails, if you can learn how to slip the clutch and keep your momentum up when climbing a hill, you dont need a longer swinger.