ideal FT levels on NDT?

The reason I first started to wonder if Armour worked for me was the following results:

FT4 1.1 (ref 0.7-1.5)

FT3 2.9 (ref 1.7-3.7)

TSH <0.001 (ref 0.2-4.0)

I think that mid-range FT4 levels are considered normal when on NDT, but I could not help but wonder if indeed my FT3 levels were lowish on 5 grains of Armour daily...or were they, considering that I had not taken any NDT in the 24 hours before the test?

Sometimes, it's said that, on NDT, your FT3 levels are at the very top of the range. However, if they are that high 24 h after latest dose, does that not mean that they were very much out-of-range (well into the hyperthyroid range) the day before?

I realise there are not necessarily any ideal levels, but I'd appreciate any input from you concerning these levels.