Seems kinda standard tho, I feel like im missing the point of the OP.
No real point, I thought it was interesting though. The reason we open Potion/Warehouse on a board with Familiar is we want to maximize our chance of hitting 3P before the reshuffle (I think it's better than Silver/P, anyway) and we want to maximize the number of familiars we play by cycling our deck way faster. When we accomplish this, what tends to happen is that our economy is broken, but unless our opponent has done the same thing their deck is even more ruined and we have enough time to recover. Remember, Warehouse/Familiar doesn't even really buy more than a silver or two in terms of economy for the first few turns.
In this game, there are two curse-resistant counter strategies. If Warehouse/TM hits, you can go pretty far by just spamming warehouses until you can find 3 gold or GGS in 9 non-warehouse cards. Another unbelievably curse-resistant strategy is Chancellor/Stash, where you never see the bad part of your deck anyway because you are spamming Chancellors, and getting 2+ stash before being overcome with curses should not be a problem, after which you can consistently buy chancellor/stash/province. Maybe some sort of hybrid strategy would work too.
I'm not sure what the answer is. At the table I went with Warehouse/TM and my opponent opened Warehouse/Potion. I hit TM at turn 5 and after that it was mostly over, though all this proved was that if nearly the best possible scenario happens for your strategy, you will probably win. I actually misplayed badly to win by only 1, but it should not have been close.
I would actually like to know what is the expected turn you hit Treasure Maps on with opening TM/Warehouse (buy rules: open TM/Warehouse, buy one other treasure map, else buy warehouses until they activate), if anyone can bother to figure that out.
Game log:
http://councilroom.com/game?game_id=game-20110607-144518-7e707f8a.html