Proper positioning would be using your legs to hold the rider on the bike.
Proper test of this.....
You should be able to put your bike on its kickstand
Ass cheek off the bike to the left (like leaning on a turn)
look through your turn (pretending)...
you should be able to let go of the handle bars and remain on the bike without falling off.
All in the legs, feels like a back workout because of the way the rider is positioned.
Most likely because you were in a "comfort" riding position and wasnt really ready for such a change in roadway. In a PROPER "Im ready for the road" riding position, legs gripping the tank, this should never happen.
Agreed on 600s being more forgiving. This is generally due to the low torque amount of a smaller bike. Sudden changed in throttle on arent as serious as they are on a bigger Liter bike.
Most important thing to remember while turning is NEVER let off the gas. When in doubt, GAS IT. Its more fun to give the bike a handfull of gas while in a turn anyways
A Twist of the Wrist II by K. Code is the only one Ive read before. After riding for a month when I bought my first bike without reading first.... after I read.. I determined I was doing a LOT of things wrong.