very true, getting down to 8% bodyfat is extremly difficult, takes a very strict diet and 6-8 HIT cardio sessions a week plus workouts. After my 3rd comp id decided id had enough, the amount of time and effort it takes to get in to competition shape really drains you, you feel like crap and it was in my prep peroid for that last comp that i injured myself, partialy tore my right peck and strained my back.
I now have issues with my right elbow and have to wrap it up when i train, my knees arent what they used to be but luckely i still don't need to wear any wraps (yet) , i get sciatica and feel i dont have the same range of motion when working chest, competing ages you but if i could go back in time id do it all again becouse its my passion but you learn your limits.
I still train 5 days a week, eat 8 meals a day and work hard to maintaine 10 -11% body fat although i usualy get to 15-16 % when bulking.
Bodybuilding isnt easy, its damn hard work but its also very rewarding and teaches you allot about yourself, what your capable of acheiving, makes you a stronger person and not just phisicaly.
cheers-
Darren