what about back in the day when test was shunned upon? Arnold and Franco days?
Depends on how you define "kept".
In the late 80s early 90s there was no real PCT (maybe some HCG). We tapered down. Always seemed to work OK.
I've seen mid 70's off-season pics of Arnold in his prime Olympia years, when he looked absolutely nothing like the huge Arnold we were accustomed to.