Tony,
If you are interested, with a very modest investment, you can buy an
old Palm 500 with a GPS sleeve for around $150 US (ebay). Add
"Soaringpilot " free soaring/navigation software, and you will have an
excellent very inexpensive soaring based GPS system and can also add
your flights to OLC-if you desire.
Mike
Tony wrote:
Cool!
Have you posted it on OLC? Please do!
Kirk
Yea, sure, do you have the address so i can email copies of the
barograph trace and landing witness document? 
Seriously, paying a kings ransom for a GPS datalogger whizbamgizmo is
about last on my list. I can have fun and fly cross country and get my
satisfaction out of posting flight reports to this and other
newsgroups/forums. Im just happy i remembered to take the barograph
this time. All my past experience has been that Repogle is some other
language for "Lift Killer"
Maybe after I get a Total Energy system installed, get the trailer in
primo condition, recover the glider, and win the lottery, then the OLC
had better watch out!