Uh... -10 actually scares me. I don't disagree that it's convenient, but I'd get some fittings to step that down to a smaller size if at all possible.

When I bought my oil cooler, it came with huge -12 AN fittings. My oil filter housing had metric fittings, and all I could easily find was a metric to -12 AN. The Setrab rep urged me not to use -12AN lines for my oil cooler setup because the larger lines cause a pressure drop in your oil system. All that added volume makes it difficult for your oil pump to provide enough flow. Setrab recommended -8AN at the largest for any wet sump system. He said the larger stuff is okay for dry sump V8's, but not for an import.

Since he's a guy that actually finished his engineering degree, I took his word for it. I found those fittings about 3 weeks later, and a month and a half down the road after getting the wrong ones from them and sending them back, I finally got them. They happened to be the last part I had to order so I could put oil in my car and start it. I had finished everything else and was SO impatient to get my car running. Damnit... ah memories....