[ozzy6900]

My stand is simple. The runner may choose slide or not to slide. If he chooses to slide (in FED) he must make a legal slide as per FPSR. However, if the runner does not slide, you cannot enforce FPSR!

The runner may have been put on the front end of the DP, but (again HTBT) where was he? 20' away? 5' away? Did he have time to turn out (toward the outfield) or in (toward the infield)? The OP gives us no clue to any of these questions.

All the OP tells us is that the throw was not on target and F6 had to adjust. Right there you have a problem. Now you have a runner standing on the base and F6 turns into him. We cannot expect the runner to disappear nor can we expect the runner to suddenly flatten himself.

What you all seem to be trying to say is that you want to reward the defense for a lousy throw and for incidental contact with a runner (retired or otherwise). Not every contact requires punishment!