8wt fast action for me and make sure you can double haul. The wind is a constant down there and only quits for the month of August when the temps go to 110.
This way all the fisherman will appriciate it's return in September.
We kept waiting for the wind to drop off last year... it never did. Maybe this year.
Wwest, I have played the underlining game and didn't like it, myself; different strokes, and all that. GoPlay, you might want to try it and see if it works for you.
George, I envy your historical playground - things have probably changed a whole lot down the Madre since then, and most of them not for the better.
GoPlay, I got one of those 8/9wt albright rods to use on the coast last year and got some good use out of it before it shattered mid-cast into a 30mph headwind. Myself personally I prefer to overline my rods, trading a more aerodynamic profile for weight and fast line speed from a fast rod. This is how I rationalize it anyway, and it seems to work for me. You'll have to find your preference. On days with moderate wind (up to 15 or so), I'll take a fast 8wt. On days more breezy I'll take a fast 10wt. I keep them both in my truck so I'll be able to judge conditions at the fishing spot and go from there.
Like spiny said, double hauling and generating line speed and inertia is essential. I can't stress that enough.