RE: 4*40 Tail wheel ?
The method called for will generally work. Just make sure you reinforce that area with thin CA and fiberglass tape. I think the instructions show this if I remember correctly. If you have mostly good landings, you most likely will have no problems. Of course, many people (i.e.: me) don't always have perfect landings. Over time, this can be a problem. I broke the rudder hinges on my Somthin Extra ARF this way. I am replacing that plane with a kit built version and I plan on using a Sulivan or similar tail wheel.