You're correct. You either stay on TRT indefinitely and continue to have high normal test levels, or you come off it and your test levels go right back in the gutter and you feel like shit again. You don't build a tolerance and become immune to test. True, guys who do cycles may need to increase their dose to experience more gains, but they don't build a tolerance and/or immunity to test. There will always be a benefit to injecting test because it will increase your test levels. The whole point of TRT is to feel good so staying on indefinitely is the approach. TRT isn't for guys who have high test; it's for guys like me (40) whose test levels are in the gutter otherwise. I know guys on TRT who embrace a cruise/blast protocol where their base test is 200mg of cypionate, which they stay on I definitely and then every 8 weeks they add 300mg of propionate to the mix and they get fantastic results. Again, 500mg of test per week is really the minimum to produce an appreciable anabolic effect.