Hi, just finishing off my Caelus here in England,the build went quite well,I have run 3/4"strips of 90 gram carbon fibre cloth down the sides of the battery tray with laminating epoxy and the result is very strong indeed,I have tried with all my might to pull it out !!!!! but I think its in there for good. My concern at the moment is getting the C.G. right,I have fitted mini servos in the tail instead of standard ones to save weight but the C.G. is still a bit further back than the reccomended 190 mm from the leading edge,and thats with a Hacker Q80 11s up front and the E.S.C. in the cowling and batteries as far foreward as they will go on the tray so it looks like I may have to add some nose weight,has anyone else had tail heavy problems?Cant wait to fly this model when the wind and rain die down here