Flouro sinks...mono floats
Also, pinners use a leader so when they break off, they only lose the leader, not everything from the float on down. (Although I must say, I've lost the whole shooting match on occasion, especially if the shot(s) above the leader get snagged). Some guys run two swivels and three thicknesses of line. (Main line with float>swivel>shot line>swivel>leader).
Tossing...you must carry extra line with you to get spooled twice in a morning
Just curious...what type of rod do you use? With a drag and long rod you should be able to put the brakes on most fish...but I can see a hot one hooked at the mouth of a river taking off
Tossing Iron...are you referring to main line as backing???...beacause most pinners I know run at least 150 metres or so of mono before they get into their backing. It is inconceivable that anyone fishing a small, winding, crowded trib could be into their backing "coming round a corner".
Bird..I would also consider the Canada Drifter or Rainmaker by Canada Fishing Reels