Mike,
The Special Hobby R-4B is a bear of a kit, but comes out to be quite the nice representation of the Hoverfly once its finished. Mine's about half done right now and once I finish the plethora of modern jets on my workbench, I'll get back to it.
My next writing project once I'm done with flight school will be an in-depth history of US Army WWII Helicopter operations from 1942-45. There is a LOT more than what most people know. For obvious reasons I'm not going to reveal much here, but there were a lot more than just the 1st Air Commando Group using R-4s and R-6s in combat. I'm looking forward to finishing up the Apache program so I can start interviewing the remaining WWII helicopter pilots before its too late!
That being said, we NEED a good 1:48th kit of the R-6A!
Jon