Brian, have you tried the pinch of amidol (.1 gram per litre, I believe) to increase the EI? I would think this would be more cost effective than doubling the strength. However, I don't know what it looks like either way. I was thinking of ordering some amidol along with my first kit of PMK just 'cuz I really want 400 out of my HP5+.(posted 8517 days ago)Just wondering.
John