The added weight is only temporary. Once the plane is balanced well other more permanent options will be used to eliminate "nonproductive" weight. If I stick to one prop (mfg & model) then no temporary weight will be necessary. However, if I play with different props to see how they perform AND I want to keep the same CG I will need to be able to add temporary weight during the evaluation period.

The battery is a 1700 mAh NiMH unit. The battery by its lonesome weighs 4.0 oz. With foam, zip tie around the foam & some adhesive-backed velcro the "final" weight is 4.6 oz. Since NiMH lose about 10% if their capacity over night I will "oversize" the battery a bit. Also, advertised capacity is 1700 while actual capacity is somewhere around 1400+ (determined by using my Accu-Cycle Elite discharge feature). In reality, when I show up at the field my 1700 battery may better be called a 1250.

A test flight this morning with 1/16" of down thrust added resulted in "absolutely no change" in the number of clicks of up elevator to have it fly straight-n-level - 11 clicks on the old trusty DX7.

Em, maybe I should just accept this airplane's "quirks" - or maybe not ...

ps - RC - your initials CH?