That's the question being asked and answered by snooker fans over the past 24 hours.
The last four battles at the Crucible have been played over a best-of-35-frame format since 1997 when it changed from 31 frames.
|Picture by Monique Limbos|
The final five days of the tournament sees the intensity of the tournament amplify and this is where the World Championship becomes the ultimate test everyone talks about.
While there's a uniqueness of this lengthy battle for the sport's biggest prize, we've seen in the past fatigue take its toll with some finals becoming a battle of the last man standing.
It's important we strike a balance.
Some snooker purists say the format of the World Championship should never be changed and it will only lead to more going forward but there's always room for improvement and it's important the tournament looks after the players as much as the fans and broadcasters.
There are so many questions to be answered. Why are people talking about change now? Should we lose a session in the semi-final? Should time be built in for a break between the semi-final and final?
I don't have all the answers but I'd like to offer some of my thoughts.
There's a well-known saying that says: 'If it's not broken, don't fix it'. I fear a lot of people are calling the structure of the semi-finals into question as a knee-jerk reaction to an underwhelming first day of one-table action yesterday.
I'd be quick to argue that every match can have good and bad sessions, and we could see both semi-final games spring into life today.
These longer matches are all about the slow-burning drama and so far, they're both perfectly poised. People should probably be careful what they wish because down the years we've seen some classics at the semi-final stage. Last year's showdown between Judd Trump and Ding Junhui was one of the finest matches I've ever seen over four sessions.
This leads me to the conclusion that maybe the issue is more about schedule than format.
Making the World Championship final is a special achievement for any player. It's therefore right that the semi-final should remain a stern test, which the current four-session format ensures.