I skate on 280's, I found my preference was a 35/55 CagOne profile. When I moved on to ProSharp, I didn't care for the Quad I tried, you may want to try the Hudson V (Glide 50).
One thing to consider, if you're skating every day, and sharpening often, is getting the profile redone 1-2 times per year, to ensure its staying consistent.