If white pine's specific gravity is 0.36, you probably saved about 3.25 oz.

(0.5")^2 *3.1415 * 20" * (0.36) * (0.0361lb/cu in) * (16 oz/lb) = 3.26 oz

If you could carry your groove a ways into your blades, you could save a bit more.

Why not use just one of the ash strips for impact/abrasion resistance rather than two?

> Hi Shawn,

> OK You guy's talked me into it. I decided to quit work on the boat for a
> while. Figured I'd let you catch up! I took a couple pieces of white pine
> 3/4" x 1-1/2" and 48" long. I figured on using an 18"
> loom and set up the router table with a 1" round nose bit. I then cut
> a half round groove 20" long down the middle of each piece and glued
> them together. So best I can tell I've got about 1/4" of stock one
> way and 3/8" the other way. As long as I'm careful and cut the oval
> shap the right way I should end up with a very light hollow loom. I think
> I'll make the blade similar to the last paddle using cedar and pine accent
> strips. What do thing about steam bending the ash strip around the outside
> of the blade like I did last time? Should I go for the abrasion resistance
> or the ultralight? Last time I used two 1/8" layers wrapped around
> the blade.