Ollie, Thanks for the insight.......

I assume from what you are saying that by extending the tail moment arm, which I have done, and increasing the area of the stabilizer area, which I have done, and by keeping the SM at around the,say, 5% of the MAC would/should be a fairly safe bet?

By increasing the area of the stab, does it matter if it is an increase in width vs length, or are we just talking " area ", not looking at shape?

Rod