HELP with HAAS size chart

[treehive]

Hi,
sorry in advance, this is boring stuff.
I have been getting some size questions about the HAAS. and what can be expected as far as performance . what I have tried to do is taken one of my formula charts and color coded it and I tried to simplified it. my hope is you can look at the chart, take your measurement of "boot to hitch", and figure out what size you need, and how much of a step you can expect, I used the limiting step to make it simpler. this should also provide a good estimate of where you should tie on you boat snap…. elongation formulas are tricky and hard to show… does this work at all? or is it stupid confusing? my head hurts from this stuff, and it no longer makes any sense to me.
really my question is this a format that works?



Red is the regular Size,
Blue is the Long size,
Purple is overlap of Size. where either will work.

and and all thoughts are welcome?


I could to a input field and it returns the info. you put in 34 and you get back a reg haas, 13.3inch step and tie your boat snap so at rest the there is about 3.5 inches of exposed bungie.

is this preferred?

 

[macswan]

Do you have an example of the color coded chart we could see. It's hard to tell what would be easiest.

I found that with my reg haas I just needed to clip it to the bottom of the swivel on my bridge. Rather than the becket on my hitch climber, so I'm not sure the size chart would have helped me much.

 

[treehive]

I thought it was attached, I fixed it, its attached to the first post. its not really so much to help with set up as much as show which size will work and what they can expect it to do, and to show just how much over lap there is. the set up measurement will be close, but as you said, really guys are hooking them on various points. my goal is for guys to be able to look at it and be able to say yes they are getting the right one.

thanks

 

[treebing]

I can see this being difficult as everyone has different bridge lengths and different leg lengths. Some people wear their harness on their hips others above the waist. I took the clip off of the elastic and use a horse knot which is adjustable. I have found tying it to the buckle strap of my harness the best place yet but I have tied it in multiple places and it has worked well. I use my HAAS everywhere on everything lately. I always hated one legged pantining so would footlock a lot. Now my haas just stays on my harness all day.

 

[bonner1040]

A calculator would by far be easier to understand. Or at least publish the spreadsheet using google docs so you can control the size and formatting. The format that downloaded for me, was horrible, I had to side scroll for days.

 

[DSMc]

This is just a knee ascender, the best one I have ever used due to it's unique construction and bungee location, but still a knee ascender. I think that using leg length to knee would simplify things compared to a boot-to-hitch length.

Thanks for producing such a great product.

Dave

 

[treehive]

thanks Dave!

the old thing of put it at your knee, was a guess, at best, and this was pretty early, it just stuck. . I had a friend that is a bit on the shorter side and he had two saddles, one fixed and one with a long rope bridge, in his case the difference in the amount of room I had to work with was huge. 25% or more. which is why I was focused on that measurement. super helpful in product design, not so much of a concern for the end users.

with that said you are totally 100% right!. the regular haas is going to put the middle of the ascender about 16 inches above your boot, the long is going to be about 19 inches above you boot. and with the way the bungie is it is really forgiving. so even though there are variations in systems, the haas has enough buried bungie to be able to work.

I owe you a beer.

next time I'm in montana I'll look you up.
Michael