I've seen the 4 stroke ads but have not seen one run yet. I would bet it works pretty well. The couple sport fliers that have it seem to report mostly good experiences. One guy had lots of pain early on but eventually he figured out how to tune it right and now seems happy with it.

For me tho, it doesn't appear from what the sport guys report, that it has the power of the 2 stroke 33.

Bottom line, I think the sound would be terrific but lack of power and heavy weight are handicaps for pattern