Marc Ramsey wrote:

That's a great idea! Since I write my own navigation and IGC file
flight recording software, I'll be able to get that extra 5% of
performance I need to win on a consistent basis, without buying a new
glider 8^)

Seriously, though, there are numerous off-the-shelf consumer GPS units
with recording capability, that meet both the letter and spirit of US
regional and national contest rules, and there are some that cost well
under $150 new. Hopefully, within a few years the IGC will also allow
their use to document Silver and Gold badges...

Marc

P3 convinced me offine, that though making your speed look better is
not a real-world problem, using a text editor to change one or two
fixes to elminate a misstep into class C, start gate height, a fix at
17,501, a missed turnpoint, etc. really is real-world issue. So let's
spend the $150 and stick with the Garmin as minimal equipment

John Cochrane BB