For sure doubles on wide ones like the Superbuzz are great. Mine was one of the most responsive boards I have ever had. At 5'6" though it required some foot placement memory switching back and forth. Best session I had on it was when I ran over the Camp Witch at PC, which in turn put a nice ding in it that kinda lead me to offing it.
My buddy in HMB got a Saw and said it went OK on the slopey points down in SC, but best at local beachie in the mid range which is consistently steep & hollow and not much like it around here. Maybe if I surfed Canyons, Nellys, or Geteaten more often. If I got another Stretchy it would be 6'3" Thing V2 round tail for the goods or 5'8" G-Buzz swallow.
This is best OR shorty I have ever had and surfs everything from 2'-10'. Got it on Used Surf .com shipped for $340.

No need to make any changes at the moment. Saving for mid range good wave board to replace 2x4, which lit up in good stuff and turned and went on a rail insanely. Just a little unpredictable and not a round tail. Lead me to think no need for doubles at 19.5 width. Thinking custom 6'3" Ghost with a little wider tail than stock ordered for delivery in Sept.
Routine is a vampire. Manu Chao-