Yes, I used two chain whips. I could fit pegs or screw in bolts for form a FW clamp but they would not be adjustable and who knows what FWs the future brings along. Sheldon's FW article shows on of those clamps. I'll just use two whips for now. I'm not planning to make a habit of taking cogs apart.

Besides I rather like the way a whip distributes the force across most of the teeth vs only the 4 points the bolts engage.