And it was concentration and trouble at the base of the scrum that turned this game in Ulster's favour, the northerners taking full advantage of errors in that area to score tries in the 45th (Ian Humphreys) and 55th minutes (Ruan Pienaar). Humphreys hacked through to score beside the posts and bizarrely missed the conversion into the goal that Ian Keatley missed a 34th minute penalty that had a significant bearing on the outcome.
At that stage, Munster who had been giving as good if not better that they were getting, trailed 13-10, thanks to a well taken Luke O'Dea try - from a clever crossfield Keatley kick and subsequent superb touchline conversion - and his 29th minute penalty.
From the restart, Stefan Terblanche, who'd scored their opening try, began the move that ended with John Afoa's score converted by Humphreys that represented a ten point turnaround in the home side's favour just before they went in for the break.
By this stage Munster had already lost the influence of both Tom Gleeson (shoulder) and Tommy O'Donnell (knee) and things didn't improve when Humphreys capitalised on that error to score his side's third try.
Damien Varley (shoulder) was the next to retire injured, Pienaar pounced on the next tail of scrum mistake and Munster found themselves with a mountain to climb although with 25 minutes to try.
And in fairness they did make the effort but on several occasions in the opposition 22 turned over ball to make life easy on Ulster and hard on themselves.
There were positives however, a first half performance into the wind that boded well and the fine displays of Dave O'Callaghan and Paddy Butler when he came on as a 34th minute replacement for O'Donnell who was also going well until injured. Luke O'Dea looks to have all instincts of a good try poacher, Murphy was safe as houses under the high ball and needed to be, Ian Nagle took on his share of ball and of course Mick O'Driscoll lead as he normally does from the front.
Munster: D Hurley; L O'Dea, T Gleeson, L Mafi, J Murphy; I Keatley, D Williams; W du Preez, D Varley, S Archer; I Nagle, M O'Driscoll (capt); Dave O'Callaghan, T O'Donnell, J Coughlan. Replacements: W Chambers for T Gleeson (27 mins); P Butler for O'Donnell (34 mins); D Fogarty for Varley (50 mins); T O'Leary for Williams (63 mins); S Deasy for Mafi (66 mins); M Horan for du Preez (71 mins); B Holland for Nagle, J Ryan for Archer (both 74 mins).
Ulster: A D'Arcy; C Gilroy, D Cave, I Whitten, S Terblanche; I Humphreys, R Pienaar; P McAllister, A Kyriacou, J Afoa, J Muller (capt), D Tuohy, C Henry, W Faloon, P Wannenburg. Replacements: N Brady for Kyriacou (57 mins); C Black for McCallister, L Stevenson for Tuohy (both 63 mins); C Farrell for Cave (65 mins); P Marshall for Humphreys (69 mins); A Macklin for Afoa, A Birch for Faloon (both 72 mins), P Nelson for D'Arcy (74 mins). Referee:
A Rolland (IRFU).