So I was all stoked about the leaves this fall (for once) cause I have this garden now and everyone tells me to get as much organic matter in there as possible. Now I am being told that oak leaves are no bueno, due to the acid content. I intend to take a whole bunch of these leaves and shred them and compost them over the winter with other organic matter. Will this severely alter my soil PH? Mind you that the soil I am currently using is back dirt that was brought in this year and is really hard, but I would assume is fairly neutral.