Totally!

If I set out to get a decent yield (which I didn't really, just seeing how it performed etc), I would of first made sure there where more nutrients at the top of the sub, ie more grain at the top so the shrooms have lots of nutrients they can draw from, I would of done a 1:3 ratio of spawn:sub rather than a 1:5.

also straw isn't that high in nutrients, but its more contam resistant than other bulk substrates .... so I should of used hpoo, hey, coir or a combo instead of straw, I should of added some gypsum too.

then I would of made sure it got lots of FAE fresh air exchange and I would of lightly cased it with verm.

I was just being lazy tbh .... if I had done the above it would of had 3 times the shrooms than it has now....

it was more a test to see how big the heads would get and to see how fast it colonized the sub.

Peace