I seem to enjoy trying anything with Trader, and found this one in a board with nothing going on and found it to be relatively strong (though by no means great). The basic concept is to flood your deck with a large amount of silver so that wishing well has a high probability of being a lab. I was getting ~15.25 turns average, but I was playing really quickly. Also, it has a lot more staying power than BM/Smithy, hitting 8 provinces in like ~20.5 turns. Unlike trader/cache, this strategy is really difficult to play correctly (even as a human) and I would be seriously impressed if someone got a decent version of the strategy running on a simulator.
The basic strategy (really, really not optimized)
Open 4/3 Trader/Wishing Well
Trader Order: Estate>Other Trader>Copper>Silver (keeping in mind not to trader away something if it knocks you down from
Wishing Well guessing: Copper early on, silver after 2nd reshuffle (maybe third), taking into account cards seen if you want to be optimal (its hard) If you have a hand like WW-C-C-C-Trader, obviously guess estate if you have any left.
Buy: Wishing well with 3 (I think ALWAYS WW>Silver, though i'm not sure), trader with 4-5 until you get 3-4 of them, gold possibly with 6, province with 8.
I'd love to see if anyone can turn this from a better-than-BMU strategy into something that can challenge BM-Smithy.