well the couch got me,for a bit. so,trying to finish hotts, checked cg,bad,real bad. sparkplug builds to heavy,even when he trys not to. way tail heavy,short nose on plane dont help. so,clamped os46,better, but not there. long, short of it,had a enya 46 and adding 1 and 1/2 inch to plane nose got cg about right. still be under 3.5 ,not great but will fly. well,ant 3d. my only question,not have run 4st engines,will enya be ok.weight the same as os46,mounting to, so no big deal. bit sad plug,built by plans,wood must have been heavy,and very short nose dont help. DID you glue this week. now,off the couch,to the plane. dam,i like trump ralleys.