Is there any joy that can top when your sentence is reduced ?

Yes it is a good feeling to have your sentence reduced unless you have to cooperate with the government to get the reduction. Then there is a measure of guilt for putting someone else behind bars and making them miserable because you can't do the time you "earned" for your own crime (our opinion). If you get a reduction for taking the RDAP program, then there is a greater measure of accomplishment as you got the reward for helping yourself and not having to include someone else to get what you want.