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Lure Depth


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#1 CedarLakeMusky

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Posted 27 August 2010 - 03:29 PM

I made two lures that have the same shape but different lengths. They also have the same size lip and lip angle. The 6 inch lure weighs 1.3 oz. When I cast the 6 inch lure it has a quick, tight wobble and runs about 4 feet deep. The 8 inch lure weighs 2.3 oz. When I cast the 8 inch lure it has a slow, wide wobble and runs about 2 feet deep. I am thinking the 8 inch lure has a wider wobble because of its length? Also is the wobble causing the lure to run only 2 feet deep? I attached a picture to look at. Any info would be great!

Thanks
CLM

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#2 gunnr

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Posted 27 August 2010 - 05:01 PM

I haven't been at this too long so I'm not positive but I would think the extra buoyancy would have alot to do with it.

#3 CedarLakeMusky

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Posted 27 August 2010 - 06:20 PM

That's a good point gunnr. I didn't really think of that. I am fairly new at this too.

Thanks
CLM

I haven't been at this too long so I'm not positive but I would think the extra buoyancy would have alot to do with it.



#4 Jwags

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Posted 27 August 2010 - 06:51 PM

I haven't been at this too long so I'm not positive but I would think the extra buoyancy would have alot to do with it.


I'm thinking the same thing.

jeremy

#5 Jwags

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Posted 27 August 2010 - 07:10 PM

I think it's a combination of things that is making the lure run more shallow. Two different size lures with the same lip size and angle probably won't run the same depth- I'm not an expert but that's been my experience so far.

jeremy

#6 BobP

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Posted 27 August 2010 - 08:04 PM

Lure depth and swimming action are determined by a bunch of things including; lip length, angle and width, buoyancy of the lure (related to how much ballast you use), where the ballast is located (forward/rearward), where the line tie is located relative to the lip surface, plus width and shape of the lure body. It isn't easy to predict how all the factors will play out because they all affect one another. I think your big bait would require a larger lip to get to the same depth as the small bait, if all the other factors are sized proportional to the relative size of the 2 baits. And I would expect the large bait to swim with a slower frequency just because the lip is having to drive almost twice as much body weight. When I'm prototyping a new lure, I sometimes make the lip oversized so I can use a Dremel sander on it during on-the-water testing, reducing the size and changing the shape of the lip until I get the swim action and depth I want. If you get down to a small nub, you know you missed it and one or more of the other factors need to be changed!

#7 CedarLakeMusky

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Posted 27 August 2010 - 10:13 PM

Thanks for the info BobP
CLM

Lure depth and swimming action are determined by a bunch of things including; lip length, angle and width, buoyancy of the lure (related to how much ballast you use), where the ballast is located (forward/rearward), where the line tie is located relative to the lip surface, plus width and shape of the lure body. It isn't easy to predict how all the factors will play out because they all affect one another. I think your big bait would require a larger lip to get to the same depth as the small bait, if all the other factors are sized proportional to the relative size of the 2 baits. And I would expect the large bait to swim with a slower frequency just because the lip is having to drive almost twice as much body weight. When I'm prototyping a new lure, I sometimes make the lip oversized so I can use a Dremel sander on it during on-the-water testing, reducing the size and changing the shape of the lip until I get the swim action and depth I want. If you get down to a small nub, you know you missed it and one or more of the other factors need to be changed!