All require massive effort, that is why they are a last resort option.
I've had to paddle a mates boat that the motor broke 50m from the ramp and he never put the bungs in. Night from hell!
Last year took the wife out to the fad wanting to get her a mahi. First drift turned off the motor and we hook up to a nice fish. Went to start it again to take it away from the fad and no start. She dropped the fish and I couldn't start the boat. Two boats out there and neither seen us waving for help. I'm not a mechanics bumhole but I remembered seeing the pull start under the cowling, so with a last ditch effort before ringing marine rescue, I undid the cover, plastic protective cover all in a rolling swell and gave it a pull and it started. Much to the relief of my panicked wife. We headed straight for home. Ended up being a dry starter motor.
This thread is a great reminder to have as many options available to you to get you out of trouble as well as all the safety gear you need.
You never know when your going to need it!
Cheers scratchie!!!