I know Lesco and Scotts are favorites. But has anybody have good or bad experience with Southern States Lawn Food w/ Crabgrass Control or w/ Broadleaf Control? These products match up well with the timing and purpose of my application schedule and the supplier is nearby so if I get some good reviews I may go with it. At $53/45lb/15-25k sq ft it is not a bargain. How much does one need to buy to get bulk pricing?