thanks for all the input everyone. i thought the carnuba needs to bond with the paint just like the sealant. and in addition, i thought i need to wait at least 24hrs before i apply another coat. thanks all!!! im addicted to this and i cant stop learning.
most would just say a second coat right after will just give it a more even coat rather than a second layer. i really dont know or have done a test but i have spitshined! oh the glory of spit shining. ive done 2 coats right after another and 2 coats right after another using the spitshining method. the difference is clearly there and the idea of why and how it works makes sense. \
do a search on it and recent post and threads about it will explain