Trent Boult and Tim Southee shared seven West Indian first innings wickets to put the tourists on a slippery slope at University Oval yesterday.
There's nothing new in that. The Northern Districts' pair are becoming well established as the premier new ball combination and complement each other impressively.
Both have four wickets in the test so far. Southee has 87 altogether at 33.7; Boult 56 at 29.8 in tests. However three wickets were taken by a third ND bowler yesterday, legspinner Ish Sodhi, showing there's good reason to be excited at his emergence.
Certainly he took some lumps from the one West Indian to dominate the bowling in their first innings, Shiv Chanderpaul, which can be put down to the learning process.
He also delivered some dross along the way, half trackers and full tosses which the quick-footed took advantage of.