escrow of funds?

Since we are doing weekly payouts, we have elected NOT to use escrow. Instead, we have set up a wallet for the sole purpose of funding this signature campaign. Bitcoin has already been deposited in this wallet for payouts and it will be replenished as needed.
Campaign Wallet: 1FTziwutvwSG58XCc7ncnthiPg8NCBh69L
I would also suggest that you escrow funds. If the escrow if only holding funds (and you will handle payouts) then will generally be free. It will get more people to join your campaign (assuming your rates are competitive enough).
Your rates are also very low. I would suggest that you visit
this thread to get a general idea as to how much other signature campaigns are paying (there are other campaigns that pay little but they have trouble attracting participants)