[CQ-Contest] How much is a dB worth ?

[Mark n2qt]

My interest in this is related to the 150 watt limit for LP in the ARRL Rtty Roundup. My 100
watts is more like 80 watts after the so2r bandpass filters and stubs. Therefore I could
gain almost 3db by using a small amp after the filters to get to the 150 W level.  

I was all set to try this in this years outing but ended up with a conflict and wasn't on at 
all.  

Has anyone done a year over year comparison of this level of change? 

Mark. N2QT