We have the tacktick wireless set-up on Moxie. BTW, doesn't violate the rules as long as you are just using speed and depth. I believe it becomes integrated if you hook it up to a GPS so it would give you VMG to a mark. But that is just my take on the way the rules are written.

The display on the wireless isn't quite as bit as the racemaster. We don't have a problem seeing the numbers though.

The up-side to this set-up: 1)no wires going through the deck to the unit. You do still have wires below deck that go from the transducers to the brain. Just none from the brain to the display. 2)It needs minimal juice to run the transducers (i.e.- a 9v battery can do it, although I don't know for how long.) 3)The display can be taken off easily and stored safely.

The down-side to this set-up: 1)the display pops off and can be lost overboard (which we have done once and now have a small piece of line to secure it to the cradle just in case). 2)lost programming or synchronization and had to send it back to the manufacturer to get re-programmed (twice in the 3 years we have owned it). Great customer service though and they did it for free except the shipping costs to them. 3) expensive - but what isn't these days.

All in all, I would recommend this system as not having wires going through the deck to the mast is a pretty nice thing. Works as good (reliability wise)as any other speedo I have used over the years.

-Jason