Weathered Fuel Lines

I run a fiberglass tank on my "race bike" and it's best to drain the fuel from fiberglass after each use.  I don't use clamps for a quick-disconnect.  I see they're gettin' cracked, I'd better replace them. I do use hose clamps at an event with tech inspection. 
Dellorto PHM 38 is my carb of choice for this engine.