We have Arcus E in our airfield. Owners seem to be happy with it and it flies a lot and never lands out. It is very heavy which makes it impossible to fly in 20m class (800kg MTOW) competitions. All self-launchers in this class (and ASG 32EL which has similar empty weight) fly very close to 800kg MTOW without any water ballast. In WGC level competitions lighter Arcus T's (or those few non-engined ships) have edge in weak weather. I think the general consensus between 32Mi and Arcus M pilots is that both consider their ships to be little better than others...