“I too am a single length Sterling Irons® satisfied customer.
I have been playing most of the season with mine (6-SW) and my HC has gone from 10.5 down to currently a 6.7. I too have had more rounds in the 70s than I have had over the last five years, including a 72, 74, 75 and 76. Prior to this year my low score was a 78 and I would usually shot 78 or a 79 2x a year, with other scores scattered in the 80s and 90s.
I am tall and I really like playing the SW, GW, and PW at an extended length. My SW is the highest lofted club I carry and I choke down on it for those 30-60 yard pitches.
Overall I just like the simplicity of the idea, same stance, same swing plane, same weight, good results!”