Newbie in need of some serious advice!

Hi y’all, I have some grain spawn bags that are ready to transfer to my mono tub. Can anyone tell me if I should transfer one and save one in case the first one doesn’t work out, or just transfer both at the same time and mix them with substrate and fuel pellets? This is my first grow and I don’t wanna crash and burn!

Think I found wood ears. Found on tree and fallen log in Tulsa, OK. Also advice on cooking them would be appreciated!

ID please? Was growing out of a railroad tie in my yard. Just starting to get into other shroom identity. All I know are the common edibles found in Illinois.