ORIGINAL: MTK
Scott, I have been using this method for several years also. However, just last week I was doing a pre-spring check-up and found that lite ply brace that supports the fuse sides at the screw location, (essentially a cross-brace between the two sides) had a crack in it. Pretty surprising considering the relatively low outward load.
This is the first time I've done it this way. Hope I didn't make a mistake! I'm guessing I'll be OK because of the additional support offered by the root fairing. I will install a large ply washer under the nut and there will be one more bulkhead ahead of the wing tube to support the fuel tank.