When using regular wood glue you have to be careful with warpage as the glue takes longer to set even tough it gets tackey pretty fast it isn't full set and if you move the part it can induce warp. Another thing I learned about regular wood glue is the moisture in the glue will cause critical parts to warp sometimes as the glue is absorbed into the wood. The moisture caused the wood to swell and get larger, you can actually see this happening on some parts. Make sure you weight everything down with those books might as well get your moneys worth out of them. Weight, clamps, and pins should help keep things straight. Some critical parts just plain work better if you will tack with CA to help hold parts till wood glue dries. I have tried wood glue on many planes before I just finally got tired of trying to hold all these critical parts straigh and finally decided for me I would use CA on some areas and wood glue on others. I have been experimenting on the last few models with Polyurethane glues and the seem work really well because you can apply and scrape most off clamp together and the glue expands engough to give a good glue joint. This results in very light and strong airplanes and like wood glue it is relative cheap and because you can use so little it goes a long way. Tooth picks, syringes, and small cheap brushes helps apply just the righ amount which is as little as you can get on most parts to be glued. The Something Extra is one of the easies planes to build and fly out there I have had two and will build another is a few more years. It is fast agile and very aerobatic. THe 46 should pull it ok, but if larger motor is needed you will need longer landing gear.