The consensus is that 900 is more work and the RDCs expect perfection and you have less time to practice for inspections because you're practicing drill. If you wanna lay low and just make it through do 800s, if you want to push yourself, learn your limits, try to excel and give boot camp the what for, 900s might be for you if you're picked. However, no one is going to care if you were RCPO or in the 900s when you get to A school and then PCS. It's all internal.
http://www.navydep.com/forums/showth...light=division
check this thread for more info.