If you had to choose between Collinite 845 or Jescar Power Lock +, which would you choose? I know they pair well together, but all I'm after is a durable sealant I can top with HCD/M799. I'm waiting on a durability test with M799 + their M27. If m27 is as durable as Jescar/Collinite, I'd opt for that being it is in the same chemical family.