Phoenix, Merrion, North County, Malahide and Railway Union all made it two wins from two at the weekend to set the pace in this abbreviated campaign.
Phoenix captain Adam Chester has seen his side gel well, making a fast start despite having a quartet of new faces in their line-up.
They edged out Pembroke by nine runs, a great morale boosting win against the league and Irish champions on their own patch at Sydney Parade.
"We were probably looking for 150 batting first, but Pembroke started really well." said Chester.
"Myself and Jamie Grassi were concentrating on getting a partnership together and setting it up for the back end of the innings to up the tempo.
"Aaron Cawley came out at the end and gave us impetus when we needed with a quick fire 29* that shifted the momentum going into the second innings.
"Joey Carroll bowled a brilliant spell and took early wickets which were needed. Jack Balbrnie brought Pembroke back into it but 'Jez 'and Aaron bowled exceptionally well at the death.
"We’re very happy with the win and to be two from two."
Another captain delighted to have a 100% record is Merrion's Tom Stanton whose side overcame Dublin University by six wickets.
His Anglesea Road team-mates are really relishing getting back on the park, no more so than the ever-consistent John Anderson who made an unbeaten 60 in their six-wicket win.
"Trinity have some strong cricketers in their side and I expect to see them turning some heads with wins against the bigger teams in our group," said Stanton.
"I'm very pleased with the efforts from my team and looking forward to our game next weekend.
"The guys all really enjoyed getting to play competitive cricket at home after a long wait."
Malahide are the reigning Leinster T20 champions, and they were among the most emphatic winners on the day, thumping Terenure by nine wickets in the village.
“We were delighted with the win today," said skipper Fintan McAllister.
"Phil Frost produced another belter or a wicket for the game, and Terenure batting first got off to a good start with Seamus Lynch getting a half century.
"I thought our bowlers did a brilliant job restricting them to 107.
:We lost Alan Reynolds early but Arjun Muntha and Greg Ford showed their class and were in fine form to chase the total down, which keeps the run going and sets us up nicely going into the next round of matches.”
One of the games of the day was at Inch where North County just had enough in the tank to beat The Hills by three runs.
Leading from the front was captain Eddie Richardson who top-scored with 43 and held his nerve while bowling the decisive last over.
"Tomas Rooney-Murphy bowled well for them taking five wickets, while Cormac McLoughlin-Gavin batted superbly for his fifty," said Richardson.
"Great to get the win and for our bowlers to finish off the job. John Mooney batted well him and Salman laid the platform for us to finish strong.
"We felt 140 would be enough if we kept our fielding and bowling performances like last week, and so it proved..just!"
Railway are the fifth unbeaten side in the tournament as they came away from Balbriggan with a surprisingly easy nine-wicket win after restricting the hosts to 69.
New recruit Oliver Perry proving a useful addition to the ranks as his spell of three wickets set the tone.
Kenny Carroll and Alex Stiles ensured a nerveless chase to keep the Park Avenue side on course for qualification.