Exterior oak door: Minwax Helmsman or Clear Shield?
I'm staining and sealing a new unfinished oak exterior door. It is south facing in a brutal climate (Minnesota) although it will be protected by a good screen door. I received advice on this forum to use a UV protected marine spar urethane and I was going to buy the Minwax Helmsman. I just noticed, however, that Minwax also has what looks to be an even more durable exterior-type protective coat called Clear Shield. Clear Shield, it says, "is a great choice for wood finishing projects that need a clear finish that stands up to nature's elements." Any advice on which finish would be best?