Maybe you saw the vid on youtube from the urban farming guys ?
They showed a lot of morels after throwing spore-sludge around their garden.
I tried the same approach, but with some left over disintegrating shi-take, had it aerated for I think 72 hours, the threw it onto some medium-fresh woodchips.
After about 6 weeks or so I saw some promising white pinheads emerging, only to discover that one or two weeks after that, other creatures also spotted them.
I think it was the guilty looking blackbird that had a go, but could have been a joint venture as well ;o)
After that, I never seen any myceleum there, on occasional inspection.
This was the vid btw :
Cheers !