Originally Posted by heartc

Maybe I misunderstood you, but just to avoid confusion, I think what Lio wanted to demonstrate with that pic is how you USE the position keeper generally to find out solution errors, not showcase the bug. In his example, he set target speed (deliberately) too high so the position keeper generates relative target bearings that are "outrunning" the actual relative target bearings you can see through the scope/TBT. So you would have to lower target speed to correct for it.

P.S. Lio: Great pic. But instead of "True Bearing" rather say "Sighted Bearing" or "Actual Bearing", since "True Bearing" already has a meaning: Bearings aligned to North, or compass bearings. The opposite to Relative Bearing. So in your example, the target at a Sighted Relative Bearing of about 36 deg is at a True Bearing of 216 deg.