The T20 competition got under way on Monday with two unexpectedly one-sided contests, as Instonians and CSNI ran out comfortable winners.
CSNI professional Andre Malan had the amazing figures of 3 for 1 in his four-over spell, including the wicket of his South African compatriot Shadley Van Schalwyk (18) as Armagh struggled to 81 for 9 at Stormont.
Andrew Hoey top scored with 23 for Armagh, while there were three wickets too for Aaron Wright (3-21) while Graeme McCarter took 1 for 3 in his three overs.
Malan was bowled for 0 by Stuart Lester, but an unbroken second wicket stand of 79 between Marc Ellison and James Kennedy saw the home side romp to the win.
Ellison struck 8 boundaries in a run-a-ball 35, while Kennedy hit 5 fours and cleared the ropes twice in his unbeaten 46 from just 44 balls.
At The Lawn, Instonians were equally dismissive of the holders, as Waringstown's batting imploded in front of a large Bank Holiday crowd.
Adam Dennison got the home side up and running with a flurry of boundaries in an entertaining 35 from 26 balls (6 fours, 1 six) before being trapped lbw by Shane Getkate.
It was the unlikely figure of James Shannon who proved the Waringstown tormentor, claiming 4 for 14, although it must be said that the home side's shot selection wasn't the greatest.
Time and time again they picked out boundary fielders and a final total of 103 was never going to be anywhere near enough on a decent track and fast outfield.
Shannon set the tone by taking 15 off the first over, and although he perished straight after, Instonians had momentum.
Shane Getkate and Oliver Metcalfe (23) unleashed a barrage of boundaries adding 51 in rapid time.
Getkate was in particularly destructive mood, thumping 8 fours and a six in his unbeaten 48 as Instonians raced to victory with 7.1 overs to spare.
Both Group B games between Carrick/CIYMS and Muckamore v North Down fell victim to the weather.