Yep freeboarding is sick, been riding for about 3 years now and really helps you when you start riding after a season off the board, to answer some questions..
- No freebords dont get stuck on small rocks and throw you (it doesnt happen on big rocks either really)
- No adjusting the height is like adjusting edge angle on your snowboard (Ie. castor (centre) wheel lower than other wheels = high edge angle) and truck stiffness can be adjusted too, looser trucks less slide, tighter trucks = more slide.
- Yes the wheels often do develop flat spots, but they are normally ridden out as you continue to ride on them, your stock wheels will develop these much quicker than proper wheels.
- Also wheels are quite cheap to replace so this is not a problem.
- On wether you should go closer or further away as you get better, I prefer riding with super tight trucks and castor as far as possible from trucks, but it differs for everyone, try different ways and see what you like.
If your worried about injuries, I ride every day in summer have been for 3 years and have yet to catch an edge. Closest ive been is kicking out and having to run bloody fast to not fall over.
If you are worried about cash, try to by the G2 Model, its almost identical to the G3 model and about half the price
Try and go to a skate shop and get a free ride. Its aweosome, get into it
ALSO don't give up if you dont get it in the first few days it can be hard but its completely worth it once you get it, it feels just as good as snowboarding without the lift ticket.