The word quick is relative for some people feel that 3 weeks is quick while others feel that 8 weeks is quick. Any size obtained very rapidly will be water to a certain degree, however if you are looking for gains rapidly then you will want to use short esters only such as, test prop, dbol, tren act, npp, winny. Of course your diet is the primary key to everything and you can always keep water down by eliminating salt from your diet and using ancillarys!