We (my wife and I) each have a 209X50! Hers is new, it's a synthetic stock set and mine is a lot older and it's wood!
They both are equally accurate! We have accessory barrels and now we need to get a synthetic forearm for hers, so she can use one of the accessory barrels also!
I think the biggest thing I like about the synthetic is that the pistol grip is quite a lot smaller and therefore a little more comfortable to shoot.