The preface, I typically do not use any manure-based substrates. I always get mold or something goes wrong. I live close by and I was in your store 2-3 weeks ago picking up my usual order of grain bags and substrate mix. One of the girls told me about this new blend and to give it a shot and write a review to let you guys know what I thought.
I want to say, firstly I only use the regular Select Bulk Sub, that always has worked great for me, I figured why not try this.
I have not heard of Willy Myco before but after looking at his Youtube and Patreon channels, he seems to be popular and a trusted influencer in the community.
I set up 4 tubs in my own homemade Sterilite tubs and ran 4 different varieties. The first thing I noticed was this product looked very similar to the regular substrate, same look but appeared to be little darker and actually more dense. I cut the bag open and yes, I can definitely smell that it is different. There was zero manure smell, but more of a earthy soil smell rather than manure or coco coir. The hand feel was great, I felt that this was slightly more hydrated or possibly because it was denser. I mixed it all up with my spawn bags and did the same technique I always do.
A few days later I immediately noticed that I was seeing more white mycelium poking through earlier than normal. I can tell something was different. After 7 days, 3/4 tubs were almost fully colonized! I wanted to post this review now that my first tub and flush is complete. I can say that yes, this is good stuff. Mushrooms really seem to like it. I did not do a side-by-side comparison but one thing I noticed was I got very few aborts, almost all my pins turned into full mushrooms and I had a solid canopy. I still have 3 more tubs that are also looking really good. I can't comment on the "flavor" potency but from what I've read that should be enhanced. Overall I would agree this is really good product and it basically comes down to whether you can afford the extra money. I can't give it less than 5-stars but I would say I will probably continue to buy the regular select bulk substrate and try mixing one bag of this in a few tubs, maybe splurge and buy this when I have extra cash.