Well in cruise mode I usually just do an average of 20mg of mast a day. 20mg of mast prop ED maybe 40mg of mast e EOD depending what I have on hand. In blast mode sometimes I just keep the mast at that dose though I'm comfortable bumping into the 70mg ED range for 500 a week. IME beyond 500 a week there wasn't as much of a difference. So I kinda cap it there.
If you mean after discontinuing use no of course not, no one keep gains forever once ceasing a compound. Sure it might take months to fade back to normal but it will always happen.
No offense but that is kinda a you problem then not a masteron problem