After exhaustively exhausting firsthand research, the team at Mixed Martial Artish can confirm that taking nearly two years off from Brazilian Jiu-Jitsu does not have a positive effect on one’s ability to excel in the martial art. Reports indicate that extended breaks can result in a decrease in physical capability, technique, confidence and general non-shitness. Symptoms of extended absences from the mats include missed submissions, getting trapped in guard and a general inability to do much of anything from anywhere to anyone. Researchers hypothesize that an extended period of continued training may alleviate the effects of taking 20 months off of Jiu-Jitsu, however, this remains purely speculative at this point.

Report: Taking 20 Months Off Detrimental to BJJ Skills
A development nobody could have seen coming.