Professional whirlpooling

I haven't noticed a difference in chilling with the whirlpool and bottom connections vs chilling with out (out the bottom and back in the top). I've chilled with both methods with 60f tap water and both took around 15 minutes or so. I haven't whirlpooled through the whole boil and I'm not sure it would do much. I get a gentle spin with 10 gallons with a small dip in the center vs a deep vortex on 5 gallon batches. I also use a hop spider so I suppose it might get the wort circulating a little more than just with a rolling boil. I did whirlpool recently during the boil when I added 2 lbs of liquid Belgian candi syrup to help mix it up. Between the recirc and stirring with a spoon I had no scorching at all.

 

Here's a pic of my tubes for reference.