Was it Central AC training??? Was it a waste of time??.....never...just look what champions it has produced with 20 mins pissing around (warm-up) 5 mins effort then 20 mins pissing around again (cool-down). Tried and tested...with results on the world stage to prove it!!
Sounds like a sharper/mid season session to me. Which at the end of the track season seems odd.
It's never a waste of time...
Scottish Nationals are next weekend so they're getting ready for that.