Ok heres my dillema, do i feed in the cage or another 'container' ?

I know alot of people feed in a seperate box as a method to 'tame' the snake (meaning teaching it that the box is where the food is) and also becoz of not risking substrate impactation (spell?). Im currently practising this method as well.

But wouldnt the rountine of transferring the snake for feeding stress it ? Is there a 'side effect' in the long run ? I just think its a bit unnatural.

Also, im thinking how does the snake relate opening the cage to feeding ? We open the cage daily to spot clean, change water, handle the snake and etc. And only once a week we would chuck in mice. I dont think this routine teaches the snake to relate opening the cage to feeding. Unless we never handle the snake or clean and only open the cage to feeding.

In regards to substrate problem, laying a sheet of paper on the substrate and placing the food on it could eliminate the risk.

I dont know guys. I just want whats best for my bp. What do guys think ?