I had to replace my TackTicks (which I lost by leaving at the docks
at TISC--if anyone sees a SpeedMaster & RaceMaster pop up somewhere,
maybe they are mine?)
US prices are really steep, but I found much better prices out of the
UK, as well as good service. I ordered from www.seamarknunn.co.uk.
Prices are about 2/3rds US prices, though shipping is a bit more
expensive.
BTW, I love my TackTicks. The SpeedMaster works with the transducers
from the flaky KVH instruments the boat came with, and I seriously
abused the same RaceMaster in 3 Worrell 1000s and it showed no wear
at all. And now I don't need to carry a battery during day-time
races. All-in-all I removed 40lbs of electronics off my boat by going
to the TackTicks.
--brendan