Hi David, I have and use a Golite Wisp, which is the predecessor to the Dakota. My wisp (mens small) weighs about 3 oz...which I think is pretty light for a non-hooded windshirt. If the weight hadn't changed when they released the Dakota, I would have fully supported your decision to purchase it. Its a great windshirt, but now that they use recycled materials, and bumped the weight up to 4oz, I no longer think its that great. For 4 oz, you can find a hooded windshirt for around the same price. Try this one:
The marmot Trail Wind is a remake of the old marmot ion. I also own a marmot ion, and think its a stellar windshirt. Considering that the marmot trailwind and the golite dakota both weigh the same, and cost roughly the same (remember golite will charge shipping, but Backcountry wont since the jacket is over $50) I would go with the the hooded one. My 2 cents
*EDIT SHOOT SORRY David, only the larger sizes are on sale for $52, so now i'm not so sure. My feelings about the weight remain true, and I think for 4 oz, look for a hooded one...but if its going to a cost a lot more, you might as well get the cheaper one. iono :/
Alternatively, if you like the color yellow, you can get the non-hooded version of the trail wind, for $45 which also weighs 4 oz.
The benefit of this jacket over the golite dakota is that this one has a full zip and still weighs the same as the dakota. I suspect the specs are off somewhere though...I don't understand how the hooded vs nonhooded trailwind can both weigh 4 oz.