Sailingdog, i'm not familiar with the MAS prodcuts. Iv'e used the West products due to easy local availabilty in CA, discounts plus their excellent tech service. Amine blush hasn't been a problem as long as instructions are followed.
Sailernan, I'm not sitting up straight, I'm relaxing in my bunk so maybe not paying as much attention as usual. I would however take West Systesms instruction over Casey's when it comes to dealing with epoxy.