[Elecraft] KX1 low output modification candidate.

[pa3gyu]

My KX1 'suffers' from low output. On internal batteries (8.5 V, current 
drain not measured yet), I get into a 50 Ohm dummyload:
1 W @ 80m
0.7 W @ 40 m
1 W @ 30 m
0.7 W @ 20 m

I probably should measure this again at 14DC input and also note the 
current drain, but I'm sitting here wondering about the effects of the 'KX1 
Application note/Power output modification' that came with the kit. From 
the figures above I'd say my KX1 is a good candidate for the mod, but I'm 
curious what the effect on current drain will be.... Will current drain on 
transmit also double with installation of the mod? Wouldn't that constitute 
a considerable effect on battery life, even when one is not transmitting 
all the time...
Seems like a high price to pay for what, half an S-point in signal strength.

What do you guys think/already found out?

Bart de PA3GYU