After more research, I found to be price competive with lime. Using 1/4 as much gives equal results and much quicker.
I've purchased 2 30# bags @ $12 each to try in my food plots.
Currently my plots test high 5's to low 6's. I'm trying to get them in the low 6'sto mid 6's range.
I found the Solu-Lime at Southern States. Probably other cooperatives will carry it also.