Glad you like it, you'll get used to the weight and forget it's there. You'll be doing 30-40 foot jumps in no time! I was close to buying a 300exc before picking up my 400 - couldn't pass it up - price was right, at first, I thought "what have I done" it felt heavy and awkward compared to a 250f which is more what I was originally after. Spent a good 3 days riding a minimum of 2 hrs per day and after that was convinced I didn't make the wrong choice - every time I'd go out on it I'd push it harder and also noticed how much easier the bike became to maneuvre around once I got the feel for it. Edit - you may want to read the stickies for the free mods you can do right now, from what you've told us about the bike, I doubt anything was done to it, I'd be surprised if that doesn't wake up your low end torque a bit right off the bat.