The seven-year-old had one scary moment, however, when getting it all wrong at the last when well clear.
“Shane (McGovern) said he just slipped going into the fence”, said Taaffe. “It certainly brought back memories of Kicking King at Kempton (King George).”
McGovern, who doubles as Taaffe's assistant, sent Tumbling Dice for glory going to the fourth last.
The pair turned into the long straight with the contest in the bag and only that final obstacle was any sort of worry.
“I am delighted for Shane, he is a great man at his job”, remarked Taaffe. “He's given him a top-class ride.
“Tumbling Dice is hard to place and just isn't good enough to take on Grade 1 horses. Today was the plan.”
Taaffe completed a double when Treacle left a bout of seconditis behind with an easy success in the JBC Maiden Hurdle. Capably handled by the promising Adrian Joyce, Treacle eased ahead four from home and was soon well clear of his rivals.
“He's a good lad, well capable”, commented Taaffe of his jockey. “This is a big, chasing horse who will go over fences next season. We will fiddle away with him over hurdles for the moment.”
Andrew Lynch timed it to perfection on Emma Jane in what was a stamina-sapping three mile O'Connell Transport Cork Stayers' Novice Hurdle.
Another Nation held a clear advantage for much of the journey and it was only at the last that the winner finally reeled him in.
Trainer Darragh Berry, from Wexford, reported: “This is a tough lady who never gives up. She will have a little break now and we will see what's about. She is crying out for fences.”
Eddie Power, who partnered Another Nation, was suspended for four days for using his whip with excessive frequency and ordered to attend RACE for a day.
The Philip Rothwell-trained Condara was a shock 25-1 winner of the OCW Properties Ltd Novice Handicap Hurdle.
“That's amazing, I am thrilled to bits”, said Rothwell. “He broke down on his two front legs and we patched him up. Then he broke his pelvis.”
Well, he was a happy horse here, making every yard of the running to beat market-leader Kashnito D'Hommee by nine lengths.
For pilot, Shane Jackson, it was a third victory. He is 19 years-of-age and comes from Co. Wicklow.
The layers got another screamer in the Irish Stallion Farms' EBF Lombardstown Mares Novice Chase when 20-1 shot Lala Nova did the business for the John Murphy yard.
The cards clearly fell right for Sean McDermott's mount. Favourite Chicago Vic appeared full of running, on the heels of the leaders, when almost brought down five from home by Rest My Case.
Then Tiarella departed three out, when cantering. Lala Nova was now making her merry way home and was always holding the renewed effort of Chicago Vic on the level.
Murphy indicated that stable star Newmill, the two-mile champion chaser, is set to have a pop over flights at Leopardstown at Christmas and then run over fences at Thurles, before heading back to Cheltenham.
He emphasised, though, that Newmill won't be going anywhere on testing ground.
David Casey has made a spectacular return from injury, riding his second winner in as many days aboard Son Of Oscar in the O'Shea Leader Consultant Engineers' Handicap Hurdle.
Absent for some ten weeks with a fractured pelvis, Casey scored on his first ride, Grip 'N Tipit, at Navan on Saturday. He was again seen to good effect here, driving Son Of Oscar clear from the last to beat Streetshavenoname, who was none too clever three from home.
Dancing Tornado (20-1) gave the layers further cause for glee when scampering away from Splurge and hot-pot Rinroe in the Bumper.
Trained by Maurice Keane, Dancing Tornado gave his 23-year-old son, Andrew, a first success.