G64 P and Q - Strange behaviour

Large P and small Q, WILL round the corners. In fact it will have it's maximum rounding effect when points are far apart. If line segment length is less than Q, the requirement of touching a point on the segments less than Q in length will be dropped and only held to staying withing P for those short segments. That is why on curves approximated by short segments the tool path doesn't precisely follow the programed path there.

There must be something screwy with my setup then as large P and small Q is emphatically not rounding long sparse segments... however you're still a lifesaver as setting Q to 0 (ie off) mixed with a reasonable P value and getting the CAM dev to include a point spacing variable to play with (ie I can now tell the weird niche CAM to aim for n mm between points) has solved the issue. Cheers Todd