Density is the only factor I can use to increase yields really..."...but my yearly harvest is still better because of it I believe".
Im sure it's better. More space is always more space. That is the number one factor when you aim for bigger yields. You can only have that many buds in m2.
I see people managing to get 1 oz per cola all over on here.
I wish I could have 4 colas per square foot and manage that!
Don't see what else I can change to increase that. It's not like I'm a new grower either.