I have not yet used tren, (and i cant use a 19Nor due to new bird!) but i have moderate experience with nandrolone decanoate(deca)
With the protein and low fat (or however you do it) it builds muscle. and i mean it.. i cant see the muscle built by test.. it is ALL BLOAT, FAT AND CRAP with the muscle revealed underneath.
Deca IMO gives the same anabolism as test (IMO) with none of the bloat/fat.
However, your libido WILL drop week 4+ this seems to be a given, more test dont fix it... and more/less AI wont fix it.
I am yet to really test it with letro which has anti prolactin properties but IM personal opinion... caber should be ran from the beginning FOR ME.
For a newb.. the first time i ran deca (6 weeks 200mg/wk, 350mg proviron/wk) 10 or so lbs i kept - i recovered quickly.. it was the frequency of use ie. time off that finally fucked me.
JMO i hope it helps game - respect.