iv got a poico stick and want to up grade, being a 15 yr old who loves drumming as well i try count the pennies altho money isnt much of a restriction.
iv got quite confident with my first plane and want somthing more i was thinking about getting some depron and building an und_nu(whight thing see link) has any1 out ther had any experiance with them? does it lk like a gd idea?

http://www.flyelectric.ukgateway.net/indoor.htm#andnow

I too have a pico stick, but usually fly bigger planes.
I dont think you really need to upgrade to a new plane just yet. The standard stick is a bit weak so I wouldnt aerobat it without strengthening. I braced the wings with fishing twine and fly on 8 cells so it can now do limited aeros. I would try that before building an Und NU as it would be quit a step up from the stick.
Tom.