What id dry weight? Is it the plane without any electronics or the plane with everything but the battery? I built a simple cub and painted it but could not get it to fly. I think it wouldn't fly because it was twice as heavy all up as the recommended spec. I know part of the problem was that I use Elmer's foam board and mounted the servos too far back so it was severely tail heavy. To get the CG right I had to add a huge lead weight to the nose and I think it was too much. Now I am building a second simple cub and was thinking that if I needed to I could drill some holes in the tail to lighten it up (like the video where Peter and Josh drilled the crap out of a plane until it wouldn't fly). Before I drill I would like to have an idea about how much the plane should weigh without electronics.
I use a heavier FB for all of my builds and you can even make the original heavy version fly well with a simple addition.
As you are building a new version there are a few things you can do to actually reduce the tail heavy issue.
1. Remove all of the internal paper on the fuselage tail boom.
2. Use lighter servos for the tail control surfaces, (I have used 3.7 gram servos successfully in the past).
3. Fit a slightly larger and heavier motor than specified.
4. Add a propeller spinner, (metal spinner can add significant weight to the nose).
5. Fit "Tundra" type tyres. They are normally heavier and really improve the landings.
Now if you do all of the required work and it still needs nose weight OR it is still too heavy to fly or fly well the aforementioned addition is to add a paddlepop stick under the wing Leading edge, (on top of the fusleage), to increase the wing incidence angle.
My first version was a real hand full and really terrible to fly when maidened even though I managed ot get it to balance perfectly. I increased the wing incidence angle and the bird calmed down and became docile and flew very well. It now even tends to float on landing. It is still grossly overweight but it flies beautifully.
Just what worked for me!
Have fun!