BEagle, your post seems to imply that pilots arriving on an IFR flight plan solo should as a matter of course cancel IFR and position visually. Why on earth would you say that (sometimes it makes sense but to imply it is the law one can not execute an ILS single pilot above some specified minima is silly.)
If I am looking to cut minutes off the arrival and there is no other traffic fine, it is a perfectly sensible plan. However, several times I have cancelled IFR looking for a quick visual ahead of a jet rather than fly some long procedure behind him and suddenly I am sent to orbit low level waiting for the controller to deign to fit me in rather than just stay in train with the other arriving traffic - and it took more time than just executing the arrival!