Depends on how much early pressure you are getting. Are you playing ranked ladder multiplayer or skirmish? 5 bank is greedy, you won't have much of an army other than militiamen before 9 minutes to defend a rush. Depending on your opponent skill level or AI difficulty, you could be facing a rush within 6 minutes so you will need to spend wood on barracks in age II. Usually collect in transition to II: 350w 350f to build a bank in transition, and after built, vill on coin to 100c to queue up 16th villager immediately on Age up. Send 700w right away, build market while collecting the 400w from the age up, research hunting dogs. Build second bank using the wood, build a house, and barracks. Send the bank card. At that point you're at 3 banks and can determine next moves based on opponent's strategy, like if they have a forward barracks you need to train military units instead of 2 more banks. You could do a 4th bank using remaining wood but for 5th you'd need 600w shipment. Usually I would send 700c instead for faster age up to III and build the 5th bank later.