Wish I had thought to take a picture of the mod before I glued it together. For the pieces inside the rudder and elevator I notched the pieces instead of butting short pieces. On the tips I notched so the spar could go into the tip. The bottom of the spar is also notched so it can go over the top of the tip. This gives a much larger glue joint and maybe a stronger joint.
Progress made during the icy weather.
Held together with a couple pins to get an idea of how it will look.
Have noticed the pieces aren't as precision cut as the pieces in the 600 series kit. I had to shim between a couple of the ribs and leading edge.
It's got two wood disk that will get glue to the nose and a plastic spinner that will be glued on the prop. I have two of these P-51D kits. I'm thinking about modding the other to be 2 axis R/C, maybe 3 axis if I can come up with light enough parts.
I'm a huge fan of Rubber Power Free Flight. I don't know why but I actually prefer FF to RC. I have had quite good luck with the 900 Series kits. As you probably know they are designed for Rubber Power Free Flight. A couple of mods I would recommend you at least think about is. First using "Good" 1/8 inch thick rubber at twice the length of the propeller hook and rear motor peg. Also modding out the nose block.
I would suggest not gluing the spinner to the prop. Cut out the slots for the prop blades so it can clip on for dislpay, take it off for flight. Thats what Ive done for my Typhoon. I think the spinner is more a hindrance than a help in flight.
I really like the 900 Series kits. I can't say enough good about them. I do use my own Contest Balsa Wood on my builds. I still buy the whole kits and have a collection of them.