lining the bottom of the pots made no difference , prolly due to my pro-mix being very airy anyway
peace
I've always been off the opinion that lining the bottom of the pot with stones has no real benefit in the vast majority of situations. People think it will help with drainage but mixing the stones in with the soil helps with the drain a hundred times more. It can help if you're using something like Autopots or some other bottom feeding type of system.