There has been a selection dilemma with national kilo time trial record holder Simon van Velthooven and Matt Archibald (Invercargill) both pushing hard for inclusion.
"We drew up a bunch of selection criteria and tests for the blokes to do and we ended up having to run them twice to be sure of what we are getting," Grace said. "At the moment we could run any combination of the five guys and ride times that would be within 0.3 of a second of one another."
Mitchell, 21, has become world class in the role as starter, with 2009 triple world junior gold medallist Webster coming back into top form in recent weeks. Dawkins, who gave way to van Velthooven in the No 3 slot, has regained his best form to earn a recall.
They were fifth in their world championship debut in 2010 in 44.450 before lowering this to 44.118 in winning the World Cup in Cali later that year.
Last year they went 45.032 on the slower Copenhagen track to be sixth at the world championships before smashing their national record with a 44.074 in winning the Oceania title at Invercargill late last year.
Grace said the world championships form a key focus for the team, who are not daring to think further ahead at this stage.
"We are focussed on this ride. It is definitely a very, very important time for us. Traditionally the teams that do well at the world champs in a pre-Olympic year do well at the Olympics in any case. We have gone full gas for this event."
He wants the sprint group to go home with a gong or two as reward for their development over the last three years.
"We came here to get some medals," Grace said. "We have the biggest team [of sprinters] we have ever brought to a world championship. We have guys who are absolutely firing so I guess we would walk away a little disappointed if we don't bring home a medal."
Racing begins tomorrow (Wed) with New Zealand contesting the women's sprint for the first time with Natasha Hansen and Katie Schofield chasing late qualification for the London Olympics. Men's endurance coach Tim Carswell will today name his combination to take on qualifying in the 4000m team pursuit.
World championships programme:
Wednesday afternoon: Men's team pursuit qualifying.
Wednesday evening: Men's and Women's team's sprint qualifying and finals, men's team's pursuit finals.
Thursday afternoon: Qualifying women's sprint, women's team's pursuit and start of men's omnium.
Thursday evening: Women's team's pursuit finals, women's sprint elimination, men's omnium, men's kilo time trial, women's points race.
Friday afternoon: Men's sprint qualifying, men's and women's omnium.
Friday afternoon: Women's sprint finals, men's sprint elimination, final men's omnium, women's omnium, women's scratch race.
Saturday afternoon: Men's individual pursuit qualifying, women's keirin qualifying.
Saturday evening: Men's sprint finals, women's keirin elimination and finals, finals women's omnium, finals men's individual pursuit, men's points race.
Sunday afternoon: Men's keirin qualifying, women's individual pursuit qualifying.
Sunday evening: Women's individual pursuit finals, men's keirin elimination and finals, women's 500m time trials, men's Madison.
