England's Ashes experiment with an all-tall pace attack suffered an early glitch as WACA chairman's XI openers Marcus Harris and Luke Towers raced to an unbroken century stand.
With only lynchpin James Anderson standing under 6ft 7in among England's frontline seamers for this first tour match at the WACA, Harris (68no) and Towers took a liking to Boyd Rankin in particular.
The result was a lunchtime total of 102 for none as the Irishman suffered a nervy start to his first Test tour and his fellow seamers threatened little, after their hosts had chosen to bat first on a sunny morning.
Rankin's short spell brought him figures of 4-0-29-0 and was littered with full tosses, including one at waist height to Towers as 16 runs came off his third over.
Steven Finn had struggled at this venue in the tour opener in 2010-11 but was needed this time to restore some control after Rankin's misadventure as first change.
Anderson and Chris Tremlett fared acceptably with the new ball, without posing major problems for two batsmen surplus to Western Australia's requirements in the ongoing Sheffield Shield match against Victoria in Melbourne.
Twenty-one-year-old left-hander Harris drove well, on this pitch associated more obviously with back-foot play, in a 53-ball half-century which contained nine fours.
After a watchful start at the other end, Towers soon began to tick over too after a pull for four from Rankin's second delivery.