Having built this model about 40 years ago, 10 lbs. is pretty darn good and it will fly well at this weight. I do recall that landings were a bear on a paved runway and shimming up the back of the retract units helped out a lot. Check out these 3.5" FW190 wheels. for only $5.00 per set. Just for fun and curiosity, I picked up a set. I will put them on a B.T. Fw190.
http://www.pw-rc.com/product_info.ph...c5c745827f2a92
Cheers,