I don't think 3 years is an optimal duration for staying on gear, I think if you dig up the discussion it was a hypothetical A vs. B, A > B or B > A question.
Seeing these sorts of recollections of these stupid hypos makes me think I should stop answering them (not your fault; whoever gave the hypo is to blame).
Cycling off and on is far superior for maintaining natural T secretion, spermatogenesis, HPG axis functioning, etc. vs. blast and cruising.
It's less advantageous for maintenance of muscle size & strength (GAINZ).