Dude ....the Nebro's spanked me as well. 

I've held off my 2nd try at them until about now for the cold weather. Plan B is now on grain again and I will be trying them in half gallon jars for substrate so I can scrap the top off easier and case them. It's also easier to keep glass colder than a bag. The first time went all the way to a 10lb & 5 lb block. Both got frozen and cased but it was wicked hot outside and I couldn't get my place lower than about 65-70°. 

Got some information about these and from what I was told it sounded like you need to up the PH in the substrate (lime or calcium carbonate) as well as making them freeze upon colonization then Casing layer to initiate fruits could help. They seem to grow during cold months naturally 

They appear to be grown elsewhere in bottles but let's not let the Nebro's continue to win. I've been labeling my Nebro cultures "Fahkn Nebros" because they have been the only one I've not been able to grow successfully or at least fruit. 

Benjamin Harderi just did a round of half gallon jars with Sorghum. I used 125ml of Broth to 1 light cup of uncooked grains. Cooked 1 hr and they came out perfect looking. Almost zero burst grains and they appear to be larger/hydrated. I used 500ml h2o half teaspoons of LME & Yeast with 2 whole eggs for a broth. 

Benjamin Harder I am not sure as to why it happens but I know that from a 10ml master I can make up to 10- 250 ml LC and those are always good to expand ONCE more and after that they get strange looking. I also have found Peptone in general to create what I think is mutants but in wicked small amounts it is possibly helping my tub grows. 

Khan Parks definitely got the length of expansion down AF and I just follow what I've seen him do. Alex Dorr is the man. 

As for different substrates Jeff at  Appalachian gold has been experimenting with the berries. OM uses like 6lb of Oats.  I've heard Ryan Paul Gates uses Sorghum. Not sure. It's definitely possible to use probably whatever within the regular cereal grains just do tests on the grains. I always refer to RR's methods for no soak no simmer similar to his Rye Grass Seed cooks. 

I do think that extra nutrition in the sub gives me waaaaay bigger perfect looking Cordyceps Militaris monsters 

Those were my best bags so far but I found it harder to deal with the bags then anything so far. I think I actually got to talk to the Cordyceps dude you have mentioned previously on here via the Cordy FB chat. He seems smart AF and if bags full of Oats gets you more Sq Ft of surface growth (side chunks are still wicked good -i get a whole harvest underneath my tubs) ..Then Oats is probably the best way. 

TylerI forgot to let you know but it came out "O.K.". Mother of Pearl was really tasty though. It grew strangely but it's color was amazing when young and so far the best tasting oysters I've had. 🤘☮️🤘

What type of casing layer would you suggest suitable? I've got them at a point where I was really thinking they'd be pinning. Yet to cut open the bag though 

I sure have. I've used trays in bags, PC'd adequate deli type of containers of all types and sizes. I am trying to get Bag grows as high yielding as my tubs because of course it's just way more likely to stay free of contaminants but I have to acquire proper sterile ish air injection unit/ have some parts probably but need to rig it up. I've finally found a seemingly constant LC/broth recipe so bags are definitely my next endeavor as I am not inclined to sell Cordyceps Militaris grown from a shoebox. They can look wicked good but possibly have like a green mold or some shit and I am not sure my own "O.K." they look good is sufficient.