On the Hammertruck I am using the Summit Cruiser bar on a curved forward-facing riser. I have the bar ends pointed downward.
On the Zenetik Pro I am using the standard B53 flat handlebar on a short straight riser.

Good stuff Dano, I take my HT almost everywhere nowdays, having that carrying capcity is awesome, you are never limited from being on a bike.

As for seat position, it is personal, but I prefer down tilt, for many reasons, the big on it gives a bit more of a core work out when you ride.

Exactly! I wasn't comfortable with the downward tilt at first as it felt like I was going to slide off the seat. However, once I adjusted the handlebars, risers and seat collectively instead of individually, it just seemed to click in place for me and I prefer it. I seem to be able to generate a bit more power and the pressure seems to be evenly disbursed.