I did some baseline measurements on my new V6 running Reed's FW before I start changing too many things.
The power's a good bit lower than expected and the third harmonics on both 15m and 30m are 4-5 dB over.
I've seen other references to low power, but I didn't notice anyone reporting issues with the third harmonic on 15/30m.
Not sure what I'll do about it yet.
Measurements are with 40dB attenuation before the SA with the ubitx in CW.
The SA is a fairly decent Agilent unit.