I've postponed the event this weekend and extended the carry over until 27-28 September.
The front will arrive inland a couple of days too late, and I don't want to hold the event in marginal conditions.
On a more positive note, I received 10x GT-31's (handheld GPS's) yesterday and I'm busy configuring and charging them at present.
Their outside appearance looks the same as the GT-11, but it's got a newer chipset which consumes less power, it has a more sensitive receiver (it now gets a lock on satellites in my office), and it's more accurate. Locosys have done improvements under the hood where it counts.
I've written a manual specifically for the speed sailor, so you'll know how configure the device properly and get the most out of it.
Here the manual (this applies to both the GT-11 and GT-31) : http://www.freight-focus.com/download/gt31_manual.pdf]http://www.freight-focus.com/download/gt31_manual.pdf
Here's a picture of it :