It all depends on the loose nut holding the handlebars. Maturity and listening to the voices in your head (the ones that tell you not to do that, you do anyway, then regret it later), realizing your limitations and growing with your ability are a lot of it.
Weight is relevant as it is pretty much gone when in motion, and 600 pounds or 1000 pounds are too much to hold on to if it breaks balance anyway. You'll take a chance of hurting yourself. Invest in a good set of engine guards if it doesn't have them, then trust the investment.
Take your course and your time with it. Don't let someone drag you into something you aren't ready for. You can catch up faster than you think.
Use the device between your ears, your maturity, and good judgement, and you should be fine.
Some people go their whole life wondering if they made a difference, Marines don't have that problem.~ Ronald Reagan
2012 XCT, AFR+ Gen 4, Lloydz air filter. I don't equate noise with power.
I ride with the Force.