Received my high rib - and installed it as per instruction. Install included a 3 ounce tube of Black Adhesive Sealant, Silicone RTV by Permatex. Install has cured for a few days and will
shoot this a.m. I was quite pleased with the customer service via telephone in helping order order my rib and I did have them install front and mid bead. Perfect fit and an easy install.
Hope it shoots as well as my 200 HR's.

PULL!
Hal M. Hare