Thought I’d give you a sneak peak on building some POH material for the mod. Just spent a few hours flying around Cornwall testing cruise speeds at ISA - riveting stuff! 
Think we have it pretty close to the numbers! At most we are 2knts out when at 25" / 2500rpm & 20°C rich of peak.
Now to do 10 iterations of 23/23 to get a good average…
