for really good 3D that size is better at 25 -- My own EF YAK weighed 15.25 with piped ZDZ50 -turning Mejzlic 22x8 at 7750 static
instant acceleration and super slow falling maneuvers
lots o power and min weight is the 3D formula- no way around it
but -- my 39 lb pig of a 42% at 2600 squares -is 34 lb loading and is also a "feather " relatively. just not the acceleration of the YAK
My EDGE at 23 lbs and 1650- is close to 33+-- not as good at slow 3D but still very good at power maneuvers. Lots o power.
30 - is a decent number for most stuf -in THAT size ---- but lower is better -
now go to really good electric flat foamies - the power to weight is far far better and the performance is like a hummingbird
wing loadings of 3-4 ounces per sq ft.