Originally Posted by
CraigM
Not really. The Tekin was never a TC spec competitor (i.e. low turn mod speedo), and it didn't really get competitive with the SPX until recently. As for SP, they released the 2.0 just after the SPX and again it was aimed at the mod market where it remains one of the top speedos. The 2.1 will be their first spec speedo and its software is compatible with the 2.0 so it will outlast the tekin if that is due for an upgrade soon.
FYI I like buying new speedos. New toys are exciting and I like to solder

Craig, you make the assumption that SP 2.0 is actually an upgraded hardware and not just a software upgrade. Do we know this as a fact?
I think you will find that they are just software