So in my search for ODs to work with an already high gain amp and my new 27” scale 7 string drop A/drop G, I stumbled upon the TC preamp style pedals; Pepers Dirty Tree, Airis Electric Dragon and keep reading all the rage around the Dirty Tree due to the TC Preamp. That said to me the Electric Dragon might have a leg up with more tone shaping options, but unfortunately can’t get my hands on any unless I go on a shopping spree, so here I am hoping to get some input for you guys on those. Also, the Electric Eye Mud Killer is high on my list for low tuning extended range on an already high gain amp. Was ready to snatch one up, but then the TC preamp style popped up and made me think a bit more. I’m also aware an EQ could work as well, but really wanted to see what y’all think of the others for my purposes.