The prop bolts on my IVO medium had a 30 ftlb torque. The IVO prop plate/drive lugs to Rotax prop flange Y bolts were 200 inlbs . Their website has the instructions for the model you have with torque values.

The blades should not move in the hub, I would consider any movement Not airworthy.

I have a 70" medium 3 blade in flight adjustable hanging on my hangar wall that I should, could sell, came off my 912uls when I put on an Airmaster.
The Ivo served me well, it was balanced with a Dynavibe when installed.