Ok so one haas the rapid moves follow just like gibbs cam shows, the other haas machine doesnt? Its hard to judge where to put the clamps.

slow you rapids on the first pass

Solution: don't rapid so close to your surface that you cannot clear the clamps :)

In rapid traverse, both X and Y move at full speed simultaneously (looks like a 45 degree angle), until either of them reaches its endpoint, then the remaining axis continues to move alone. So it will look like a combination of 45 degree moves, finished with moves parallel to one axis.

A more modern cnc may have enough capability to actually perform an interpolated move at rapid speed, I know I had the option to pick either mode on a Mitsubishi cnc.

You will have to visualize how this works, because the CAM software most likely calculates an interpolated path (bee-line) between two points.

Run the graphic check on the Haas to double check, I think it shows the actual rapid path.