The best of yesterday's trio was a new Scottish record of 2 minutes, 9.32 seconds in her opening event, the 200m backstroke. She then went on to add the 100m butterfly (1:01.43) and the 400m freestyle (4:11.46).
Last month, 20-year-old Miley won the gold medal in the 400m individual medley at the European short-course Championships in Istanbul, but her ultimate goal is to play a starring role for GB at the London 2012 Olympics.
She is currently devising a suitable plan. "I know I've got the technique, but I need to add more muscle," said the swimmer, who is a slightly built and a far from towering 5'5".
"In the past few weeks, I've stepped up my distance in training and have placed a greater emphasis on strength and conditioning. I can't do anything about my height, so I've got to find another way to match the power of the very best in the world."
Today, Miley, pictured right, will be chasing another three titles, a list that includes her favourite, the 400m individual medley.
City of Glasgow's Robbie Renwick, a finalist in the 200m at the Beijing Olympics, clinched his third freestyle gold of the championships by taking the 100m title. Leading from the gun, the 21-year-old was home in 49.84 seconds and just edged out fast-finishing Ryan Bennett (50.22).
Warrender's Lewis Smith continued to stack up titles by claiming the 200m individual medley in 2:03.12. The 21-year-old now just needs the 400m today to complete the medley hat-trick.
In the 200m butterfly, Smith added a silver medal but was no match for Newcastle-based Scot, Andrew Mayor, who competed for GB at the 2008 European short-course Championships. The 23-year-old beat Smith by over three seconds in 1:58.13.