Day 4 Taper?

What is tapering? We think we know, and I am sure I have hit my taper once or twice, maybe Indy 2004 and ? Not recently.  2014 PMS SC, no I was using USRPT.  USMS SC 2014, I had stopped USRPT and started TT, traditional training 1 month.  USMS LC 2013, Mission Viejo, I swam the pier to pier on Sunday and my first event was Thursday, so not really, how about 2013 USMS Indy? I need to check, maybe, and I did have some good swims.

1000 swim
8x50
 Drill/swim
  IM order
  Butterfly, no breaststroke.
2x100
  Fly/free
2x100
  Free/fly
6x50
  Free/fly

200 swim

2300 yards