I'm building a fairly large Sprinkler System and have ordered the Rainbird 5006 Rotors. I'm considering connecting these Rotors via the 3/4" Side Inlet with the 12" Hunter Swing Joint. I've seen warnings that you should refrain from using the Side Inlet in freezing climates. I live in Colorado and typically blow-out my system prior to the winter to avoid having costly sprinkler repairs so I'm wondering if the warnings I've read only pertain to people that do not drain their sprinkler system. Prior to ordering the Swing Joints I'd like to get feedback as to whether it is better to use the Side or Bottom Inlet in the Rainbird 5006. Thanks