Pumping defined
"Pumping" a two speed winch is when you move the handle through a small arc, back and forth, rather than "grinding" in a circular motion.Therefore, you engage one speed on the "out" stroke, and the other speed on the "in" stroke. This is a good and valid technique when the force on the winch is hard enough to keep you from making a full circle with the winch handle. I also use this when single-handing as it is easier to pump the winch and steer at the same time.Because of the "jerkiness" of the motion, it is going to be harder on the equipment than a smooth, circular grind, especially on the ratchet pawls that engage / disengage the gears.Also, I would think the amount of wear and tear is also proportional to the force with which you reverse the stroke, and the amount of arc you apply between reversals (ie slower reversal, more arc = less wear)However, the two speed winches are built to take this and when used reasonably I don't see how it can dramatically affect the life of the winch.Of course, regular maintenance and greasing helps too, which is something a lot of sailors ignore...Interested to hear other opinions...Bob s/v Simple DreamsChicago