Shooting 500mm f/4L IS from small boat
I'll be visiting Jacksonville Beach, FL in a couple of weeks and my brother and I are considering taking his 22' Boston whaler-style boat to Gauana Park down below Ponta Vedra. (We may be on foot also, depending on what some of the locals tell us about the best spots to view and shoot birds).
My rig is a 7D with the EF 500mm f/4L IS, with and without the EF 1.4x TC II. I plan to hand hold with the TC off anytime the boat is moving, but was thinking that I should try my monopod when we're just drifting or still, watching something. I suspect that I'll be sitting and may or may not be braced against the center console. So I'd extend the monopod only to eye level, with a gimbal on top.
I know we've got a macho man or two around here that handhold everything. I'm a 6', 250 lb former football guy, with healthy joints and good strength, but I still find that on dry land I get my best results with either a tripod or monopod, particularly for non-flight shots, when using a lens over 200mm. I do know to add some extra shutter speed for the boat moving, but was wondering about any further experience and tips for using a monopod from a relatively small boat.
Thanks for any help.