Thanks for the tips, Brad.
You sure are lucky to get your mushroom compost at such a good price. I get it at $27, plus state tax that brings it to $29.34, and I considered it the bargain of the century. I buy a truckload once a month for 6 months out of the year. Best stuff since I gardened on a former cranberry bog, with gorgeous black topsoil 18" deep. Heaven!
j