Has anyone ever had any sucess using a 19-3-5 fert and dimension 0.08 ai. combo? The reason i ask this is, Jonathan green is having a sale soon and it will be selling for $16.95 for a 50# Bag. Thats quite a savings. However i am skeptical, I've always used a.10 or .15. Also if i do split apps. i like doing spring and fall. will .08 get me to fall?