I ended up stringing my Wilson Advantage up with some remnants I had: YTEX ProTour 16L Mains w/ Tour Bite 20g crosses, both at 36 lb, per Chris's recommendation.
Just finished up our Woodie Mixer. Played 3 hours or so....had some pretty stiff competition, too. One fella played two years at U of Arkansas. With the poly I was able to really crush the ball without fear of the ball flying out. I definitely noticed more bite on the ball, but not the huge difference you would notice when stringing up a modern frame. The biggest difference I noticed was the "CRACK!" sound I got with a big flat serve or other well struck power shot. It was unlike anything I was used to with a wood racquet. We attracted a few spectators to our court to record my serve on their phones!! Overall, I still had a decent amount of power for a full poly setup, but the lack of a deep pocket sensation was missing and took a good 10-15 minutes to get used to it. On volleys is where I noticed that I couldn't just "stick the racquet out there" for a putaway volley, I had to give it a little extra mustard compared to full multi setup. Also the poly mutes the feel a little bit IMO, similar to adding silicon to a modern racquet handle. But on Serve and Groundies, Poly in a wood racquet is pretty eye opening to how much string technology has changed the game. Next time I think I will either try 3 or 4 lbs lower in tension, or try a hybrid with powerful multi in the crosses to try to improve the feel and volleys. Again, it seemed like every time I though a forehand or backhand might go out, it would drop in right inside the line....where I am used to the occasional sailing shot with Multi. I really didn't have those with the poly. Overall I still prefer the feel of Multi or Gut in a woodie, but the on court results for control, spin, and confidence to crush the ball are definitely in Polyester's favor. Just for reference, My Advantage comes in at 13.5oz strung with overgrip and full poly, which was a little lighter than the 15 gauge multi I had in it prior.