I like Jackdale's list. Here are a couple more ideas:
Thoroughly brief the crew on their responsibilties. Tell them how you intend to come into the dock -- "We'll come in port-side to. Our stern kicks to port when we reverse, so I'll bring our bow in close at first. When I call for it, hand over the midships spring , and ask the line handler to secure it. That will help stop the boat, bring us in toward the dock and when I reverse the motor
, the stern will come in. Don't pass any lines from the bow or stern until we're within 2 feet of the dock."
Make sure the crew members understand that they are only to take orders from the skipper
, not from the marina line-handler, even if the latter owns the place. Encourage them to give you information, such as distance laterally to the dock and from the bow to the end of the slip, clearly and calmly.
If the helmsman is good, it's rarely necessary to throw a line more than a couple of feet. 90% of the time, lines can be handed to the person on the dock. As Jackdale says, better to do this late (when the boat is fully in the slip) than early (when the line handler might pull and negate the helmsman's efforts).
If you must throw a line, here's how to do it: Flake the line on the deck
, tying off the bitter end. Take enough line to reach the dock and coil it in big loops over the non-throwing arm. Take 3 coils off that arm and into the throwing hand. Drop one one coil from your hand, so there's a full coil of slack between the throwing hand and the arm holding the rest of the line. With a straight-arm overhand motion (think cricket bowler, not baseball pitcher), hurl the two remaining coils in hand to a spot on the dock next to the line handler (NOT AT HIM), then point the other arm toward the dock and let coils pull off as needed. I'm old and weak but can easily throw a 1" line 30 feet or so, using this technique.
And to paraphrase others in this thread, remind your crew that this is only a boat. No matter how much she is worth, she's not worth a crushed arm, lost
finger, or even sprained back. A fender
dangling from a crew's hand on a short line can save both boat and crew from damage.
If a non-moving boat needs to be moved by hand pressure, simply push gently and patiently. My boat weighs 40,000 pounds and I can easily push it sideways away from a dock; it just take awhile.