Of the mass produced engines, they make 'em with the highest power to weight ratios. Years ago a major magazine published a Top 20 type list and Webra hogged several spots on it. I think they also explored idle to top end extremes and came up with a ratio system to rank engines that way. If my OS .32 ever wears out, I'd be interested in the Webra .36...same goes for my 20 year old Webra .50, if it ever wears out I'd be interested in picking up that .55. Gotta stop using castor in these things.
If I had that Webra 1.20, I'd build another Goldberg Bipe. It was marginally awesome with a pumped 1.20 4 stroke, it would be totally awesome with the 2 stroke 1.20 and use 0% nitro instead of the 15%-30% that the [low compression] 4 strokers guzzle. I wonder how smooth one of those 1.20s runs at or above the factory red line? That was usually something Clarence Lee discussed if he was doing a large 2 stroke review.