I didn't build a normal audax bike because THIS is my bike...i don't have cash to build a specific audax bike...and have no need to as this works perfectly for what i need.
Fair enough.
I didn't want to use racks and panniers either...the centrally mounted frame bag will have the heavier items in which keeps the weight more balanced than front or rear panniers.
They seem to work well for the millions of people that use them though. Reinventing the wheel perhaps?
The bottles are great for me...less weight than a front pannier...perfectly positioned to just reach down and pull them out...only a few inches forward of where a downtube mounted shifter sits.
Seems a strange work around, you could of put bottles behind the seat without drilling into your forks.
Tri bars also make perfect sense for distance riding and i'm sure you don't need me to explain why?
I know the benefit of tri bars darling, 100% of my riding is done on a TT bike... I also know how uncomfortable they can be at high RPMs and presumably you will be using a smallish gear, so when you're going 20 mph+ (anything less is a bit pointless on tri bars) you'll be bouncing up and down a lot. Then again you've got your bars quite high so you might not have any problems (have you done much testing?)... so that's probably not a concern.