I attempted to use the 1/2" flush trim 1 /36" long bit today. First thing I noticed was a lot of vibration when I turned it on. Thought it was due to it being a bigger bit than I usually use. I tested it on scrap 1st and it seemed ok. I started trimming a 1" pice of walnut with it - Largest bite was probably 1/16" of an inch. I hit a small pinhole knot . The bit grabbed on the knot and almost torqued the router out of my hands (yeah I did have a firm grip on it). The bit jumped up into the guide and took a bite out of it and a large bite out of the walnut rail of a footboard. Of course I had the tenons on the sides cut as well as all the mortices for the slats. This was the 'final' decorative cut. So now I have to find another piece of 5/4 walnut and start from scratch.
Lesson learned -- I'll go to my local tool store and buy a top line router bit. It will cost but I probably won't have to remake the footboard rail again.
I have several other of the triple wing bits. I certainly will think before using them.