Steve,... you made some very good points with the questions you asked. I should specify my requirements a little more. The engines I am familiar with running and have available to me are OS 35 FP, OS 40 FP, OS 40 LA, OS 46 LA, and the Evolution 36.
These engines are middle of the road, good enough for a lot of designs. I'd stay away from Classic designs though. Contemporary designs such as Vector 40 are indeed your best bet with the engines listed.
I would like to compete at some time in the future. Right now I am just trying to learn the pattern, eventhough a few maneuvers still allude me, ha!! I stopped by a the contest in Lee this past Saturday and meet a few really great and helpful guys. I appreciated all the advice and coaching that I received.
Steve, I am going to make a suggestion, I am not sure you will like. Until you learn to fly full pattern(not Beginner), I suggest you stay away from full fuse models. You will crash more airplanes during learning of the pattern than all your future crashes put together. What you need is an airframe with little emotional and time involvement that can be repaired easily. The best model for you right now to step up to is a profile called "Fancherized Twister". It's flies tremendously yet simple to build and repair.
I am pretty confidant in building. Tapered wings don't scare me. Currently I'm building a Cardinal as my first flapped stunter. Hopefully that will work well and I can continue with flapped designs.
Cardinal is a good trainer but to be honest, I am yet to see a profile Cardinal win in Intermediate class(I wouldn't even bother entering it in Advanced classes). It will get you partially there but as a model to progress with, it will find that your skills will outgrown the model.
The best way to learn quickly an progress forward is to pick one good design and stick to it. If you look at the top competitors, 99% of them stick to a single design formular year after year. This is not due to them lacking in imagination but because having a familiar design to fly helps them focust on their flying skills rather than figure out design quirks.
If you are still on board with me on using a single design over and over untill you can fly the entire pattern in 20mph winds, let's look at the requirements you should consider:
1) The design has to be simple to build and repair.
2) The design has to be compatible with your engines: FP .35-.40, LA 40-46, Evolution
3) The design has to be advanced enough to learn the pattern and get you through the Beginner, Intermediate and Advanced classes
4) The design has to be easy to trim.
5) The design should be easy to build light. In your case, anything under 48oz is good. Anything under 38oz is too small or too light to be a good flier.
Think this over and if you still want to go with a full fuse design, I suggest you follow the recommendation of the US Champion Brett Buck and build a Vector.
If you think a profile is in your future, I strongly suggest that you take a look at Fancherized Twister. Of all profiles I've seed and flown, this is the only design I am confident can get you from the beginner all the way to the top of Advanced class!
Steve
P.S. If you come to Mass Cup this Labor day weekend, I have an old Fancherized twister that is in need of some repair. I can bring it to the field and it's yours. Repair it and fly it or measure it and use as a templates to build your own FTwisters. It's up to you. That particular model took me all the way to Advanced class!