As a recent owner of a greensmower (Jacobsen GK526a) myself, I understand your decision dilemma! The main advantage of a greensmower over a machine like the Tru-Cut is the drive roller. That roller contributes to the superior striping and resistance to scalping a greensmower offers. Now, a tru-cut would probably actually deliver a better aftercut appearance on my Rocky-Mountain rough yard, but that is something I intend to start rectifying this spring with a leveling project.
The transport wheels are nice for wheeling the unit around when not mowing but certainly are not necessary by any means. Hence they are optional on almost all greensmowers at initial purchase. Rolling across the concrete is not catastrophic to the drum, however I would avoid harsh impacts.
From the pic, if that's the worst you have for slope, I would not hesitate to try a greensmower!
The transport wheels are nice for wheeling the unit around when not mowing but certainly are not necessary by any means. Hence they are optional on almost all greensmowers at initial purchase. Rolling across the concrete is not catastrophic to the drum, however I would avoid harsh impacts.
From the pic, if that's the worst you have for slope, I would not hesitate to try a greensmower!