If your looking for simplification of design, concord is your machine.

Go slow on the front out riggers as they are chain drive and like to jump off when yer in a hurry.Other than that its a nice machine

They're good pumps. Just remember that's the same footprint as the 36m so they can get a little 'tipsy' when they're stretched flat out!

rack and pinion or rotex drive?

Be aware of the link bracket between the second and third section! In tight boom configurations, it likes to get friendly with the main section ram! (They like to touch one another.)