Two scenarios:
(1) BodyBuilder "A": This person does two 12 week cycles per year and bridges between cycles (Jan-Feb-Mar = On Cycle, April-May-June = Bridge, July-August-September = On Cycle, October-November-December = Bridge).
(2) BodyBuilder "B": This person does three 12 week cycles per year and does not bridge between cycles, but instead uses standard PCT (Jan-Feb-Mar = On Cycle, April-May = Off Cycle/PCT, June-July-August = On Cycle, September-October - Off Cycle/PCT, November-December-January = On Cycle).
...Both are dangerous, but which bodybuilder is doing the most "potential" damage to his HPTA? Is a shortened PCT period between three large cycles better or worse than a low-dose bridge between two large cycles?
Birdman
Both will be very supressed, simply because your definition of a bridge is a small cylcle after a very supressive cycle, not having done PCT, which means he will not take time off to get his HPTA back in full gear, so he will build on a very supressed HPTA and therefore become more supressed.