Increase your stamina, Have more energy, Feel more powerful... It's not exactly what you think... Actually, it's better. We're talking about boating here. More specifically, Boating with Hydraulic Boat Lifts. So, often I'm asked how many cycles can I expect from my Summit Marine Retract Hydraulic Boat Lift. Viable question. The answer may be a bit involved. Straight forward, but involved. Let's take a look at the factors.