First time poster yet avid reader of TGP. Everyone I would like to know your all general $0.2 about the following idea i have for my 65RI twin. I currently have the stock Jensens in there but am thinking either: 1. Scumnico X M75 2. Scumnico X M75-LHDC 3. M75 X M75 I have read about the greatness of the Scumback products and would love to hear if any members have experimented with combinations of these sorts in twins. Thank you.