I use spinner baits and can catch fish with them. I just know the spinner bait i like. But, i don't think i have ever understood the differnce between the 2.  And after reading several topics and different ppl saying "use a spinner bait with colarodo blade" or "Use a spinner bait with willow blades" What does the 2 do different from each other and how do you choose which type to use?

COLORADO Vs. WILLOWLEAF

> The Colorado blade rotates at the slowest forward-speed, the willow-leaf requires the fastest forward speed to spin

(Indiana is middling)

> The Colorado blade produces the most "vibration", the willow-leaf blade produces the least vibration (Indiana is middling)

> The Willow-leaf blade runs deeper than a Colorado, however, depth may be governed by lure weight instead of blade shape

> The Willow-leaf blade navigates through weeds better than a Colorado blade

SINGLE Vs. TANDEM

> The single-blade spinnerbait generates less water, wind and weed-resistance (longer casts & greater depth)

> The single-blade spinnerbait helicopters when killed, while most tandem spinnerbaits fall like a dead duck

> The single-blade spinnerbait produces a distinct "thumping" sensation, while double-blade spinners dilute each other's throb

> The tandem spinnerbait produces more flash than the single blade spinner, but not without a hitch:

1. In murky water, 'throb' is far more important than flash, because there can be no flash where there is no light

2. Bass generally strike the skirt before the spinner.

The most popular spinnerbait is a double willow-leaf (search me)

Roger

For starters, the colorado blade gives off a lot more vibration than the willow blade.  so if they water was real murky with low vis, you might want to use a colorado blade for more thump.  Etc..

Rolo and bpm nailed it for you.

To continue your education please purchase one or all of these productions, in this order:

ProvenSpinnebait Techniques by Kevin VanDam from Bass Pro Shops OUtdoor World Video Library.

Teaching Succsss with Spinnerbaits by Gerald Swindle from Eagle Productions in Jasper, Alabama.

Hank Parker's Ultimate Guide to Spinnerbaits by Hank Parker, www.hankparker.com.

I like some of Hank's suggestions but there is a lot of "filler" in this video that wastes a lot of time. However, you can't go wrong with anything "Hank Parker."

VanDam is super.

Swindle is excellent.

You will learn a lot by watching these videos and DVDs.

Willow leaf blades have less "lift" than Colorado blades, to make a willow leaf run shallow you really need to reel in like mad while with the Colorado is a piece of cake.