I tend to agree with the clay and lube thing, but when the professionals tell you to use about 10x more than you were using it's hard to argue the case! That was the guys at Megs, and now using their method I can see why they were right. It's all subjective, if you're already using 10+ squirts of the QD on a section then you're doing it right. I only ever used to use a couple of squirts, which wasn't enough.
With regards to not using the 2BM, by doing it your way you're creating swirls in your paint, I can promise that. If you don't rinse the cleaning mitt, then where does the dirt go you're wiping off? It will stay on the mitt, and the further you go round the vehicle the more damage you'll cause.
Unless of course you're washing the car daily and it never sees the outside, then your paint will be contaminate free Even after one drive to and from work (so 30 mile-ish) I wouldn't use QD to wash the car with, which is a good guide as to whether it needs a proper wash or not. If you can wipe your finger over the car and leave a dust mark, then you can easily scratch it.
Not teaching you to suck eggs or anything matey, you know your paint better than me, but the theory holds true regardless.
Yea I agree with everything, I think its because I work from home and my car rarely see's dirt lol! After my paint correction its still swirl free, apart from the car park accident i had a few weeks ago