I don't think 4 weeks should be the new amount, but 13 weeks is quite long, especially for smaller SP holders that maybe need a buck or two to do something. Like my band @dewallen. We put money in from shows if we have extra, but then if we need to take some out to maybe pay for a photo shoot etc. Then that total dived by 13 weeks is just to small and slow. Hence we took ours out.