Perfect Pass

[sagmanaur]

I remember a couple of years ago there was a "group buy" on Tigeowners for a Perfect Pass. Is there any chance a new group buy will happen this off-season? Just tried it out on my friend's boat, and really liked it. Just looked on their website and they have a new GPS unit which sells for about $1200.

Thanks,

Steve

[duckboat]

Since I boat on rivers GPS would not be my choice since current is not accounted for.

[sagmanaur]

That's an interesting point. I also boat on a river, and we had to change our speed setting depending which direction we were going. It differed by almost 1.5 MPH while wakesurfing.

[sagmanaur]

I don't think they sell a non-GPS version anymore.

[Duncan]

That's an interesting point. I also boat on a river, and we had to change our speed setting depending which direction we were going. It differed by almost 1.5 MPH while wakesurfing.

We also boat on the river with about a 3-5 mph current. I have to bump up the set speed by a few mph while going upriver to get the equivalent wave going downriver.

This is especially noticable with a wakeboard wake. I have to bump up the set speed going upriver or I cannot get a smooth wake.

Several times I have empirically set the speedset while going up or downstream based on what the wave looks like (i.e., not what the paddle wheel speedo says) then compared the paddle wheel speed and the (garmin) gps speed. The gps speed is usually a better indicator of what my wave (either surf or wakeboard) is going to look like than my paddle wheel speedo.

Without messing around with it, I would have guessed the paddle wheel speedo to give better results.

[embo]

We boat on a river mostly and the gps works just fine. Yes, we have to account for the current but if that is the only thing we have to do, I think it is great! The difference is about 2mph and once you have gone up and down the river once you have the numbers for the rest of the day. It seems really simple to me and I would not let that stop me from getting a perfect pass if the only option was having to get a gps unit with it. I can't speak to other cruise units but perfect pass really is a great thing. I can tell the driver what numbers I want for taps and speed and they set it. They don't ever have to take responsibility for the wave this way. I am sure if more couples would use this device their relationships would be better out on the water.

Marrige couselor asks...do you have perfect pass? You say no and the counselor says well there's your problem.

[petrey10]

i don't get why the gps doesn't account for the current... either way the satellite should see how fast you are moving with or without the current..

[dingleberry]

i don't get why the gps doesn't account for the current... either way the satellite should see how fast you are moving with or without the current..

GPS will show speed relative to the earth's surface. Let's say that you set it at 25 mph. That is basically how fast you appear to be going to someone watching from the shore. If the river has a 2 mph current, then while driving upstream you will have to be moving at 27 mph relative to the water to show 25 mph on GPS. And while going downstream you will be moving at 23 mph relative to the WATER, again while showing 25 mph on GPS. So, in this simple example, with your GPS Perfect Pass set at 25, the speed as the rider sees it (on the water) will be either 23 or 27 depending on if you are going with or against the current.

[Moki]

It is a marriage saver

[Ewok]

Very nice explanation dingleberry, are you a teacher?

[dingleberry]

Very nice explanation dingleberry, are you a teacher?

Thanks. Nope. (engineer)

[xpjim1]

Thanks. Nope. (engineer)

You drive trains?

[Ewok]

Thanks. Nope. (engineer)

Well then that really was one EXCELLENT description, no diagrams even! ;-)

[petrey10]

o i get it now... I just figured if you threw something in the water that floated with the current that the gps would account for the current

[Fiveflat]

GPS will show speed relative to the earth's surface. Let's say that you set it at 25 mph. That is basically how fast you appear to be going to someone watching from the shore. If the river has a 2 mph current, then while driving upstream you will have to be moving at 27 mph relative to the water to show 25 mph on GPS. And while going downstream you will be moving at 23 mph relative to the WATER, again while showing 25 mph on GPS. So, in this simple example, with your GPS Perfect Pass set at 25, the speed as the rider sees it (on the water) will be either 23 or 27 depending on if you are going with or against the current.

Very good. Furthermore, if you have a handheld GPS you can float downstream to get an approximate idea how fast the current really is, then add/subtract as DB stated above to get your ideal speed...