Hey Paul
I also used Summit SS hoses to plumb my
oil cooler and fuel lines. I have no signs of the mentioned wicking, but . . .
I needed a couple of fittings during the build at one point and went to a local AN fittings and hose shop. Came up that I was running Summit hoses and the guy behind the counter goes off on cheap Chinese made hoses from Summit and said I'll soon smell fuel in my garage because of the poor quality. Says they seep. I dismissed it as him hyping his more expensive Earls hoses and have never had any problems or fuel smell. But with some of the comments here, maybe there is something to quality of Summit and Jegs branded hoses.
keep us posted.