Re: Currents in the C&D Canal
The chop on Egg Island Flats may only be a problem when the wind is in opposition to the current, going closer to the shipping channel would increase the fetch, going further into the shallow bay between the Maurice and Cape May west coast may not make any difference to conditions but add more distance. I would suggest adjusting your course and tack for comfort, unless the wind is 15 or 20+ with a southern component all day the chop will not last more than a few hours.
The Cape May Canal is a fraction of the length of the C&D so powering against the current does not have as great a time and fuel penalty. With my under-powered boat all I worry about is getting through the rock jetties and past the ferry terminal while keeping rudder control, close to slack is better for me, probably less of a problem for those with more power.
Slack before flood, or slack before ebb, both are good.
1970 Havsfidra 20 by Fisksatra
On the Delaware River at Fox Grove Marina Essington PA