Any point to layering the NXT? Car looked real nice for about 2 weeks but wax kind of faded a bit after that. Did the meguirs 3 step program first and then topped it off with the NXT, didnt use the booster at all. Any advice?
If you used a hand glaze that may be a part of the problem. Paint sealents like NXT have a hard time bonding with glazes due to the oils they contain. Also the only way to layer NXT or any other sealent for that matter is allowing it to cure between coats. Ussually it takes 24 hours for paint sealants to cure but you may want to email Meg's to get an accurate curing time. Good luck.
If you're looking for better shine than NXT and a product that has unbelievable durability try out Zaino. Even just one application lasts a good 5-6 months, with water still beading even then like you just waxed it.
Well if your looking for shine u might want to try Gold class. NXT is more for protectent i think. I live close to a lake and the bugs are kindda bad. With nxt they come off so nice. As far as the dullness goes. Sounds like to me ( without seeing the car) that you used to harsh of a polish and dulled your paint down. Just an idea. My car is white. Its a PAIN to keep nice. You are using the best products tho ;-)