Even though soft tubing is considered to be the beginner’s option, we cannot claim it’s easier to use than hard tubing. Some bends are just impossible to pull off with soft tubing. We have talked about various types of tubing in our “Fittings and tubing guide” where we mentioned the kinking effect on soft tubing. Soft tubing kind of “has a mind of its own”. It tends to go its own way… and if you make a bend too tight, the tube will collapse and stop the flow of coolant.