Since this has been brought up a few times and I have first-hand knowledge of kinda how these events run, I figured I should post more or less how M:tG Top Tier events (Grand prixs, Pro Tours, Nationals, etc.) run their rounds.
First of all, there are NINE rounds on day 1. So your msot recent plot of rounds on day one is about what it should look like: best of one match (obviously since MtG plays faster, these matches are 2 of 3 in that game) running 40 +3. So, your chart is fairly accurate to Day 1:
Day 1:
8:30 AM: Be seated
9:00 AM: Round 1
10:00 AM: Round 2
11:00 AM: Round 3
Lunch Break After Round 3 until 1 PM.
1 PM: Round 4
2 PM: Round 5
3 PM: Round 6
4 PM: Round 7
Dinner Break After Round 7 until 6 PM.
6 PM: Round 8
7 PM: Round 9
Finish @ 8 PM
HOWEVER, for Grand Prix events at least, there is a cut AFTER Day 1. All players with less than 21 points (i.e. worse than 7-2) are cut from the tournament. The remaining player play 6-7 more rounds depending on the turnout. For Pokemon, six more rounds should be fine. So, here's more what it should look like:
Day 2
8:30 AM: Be seated
9:00 AM: Round 10
10:00 AM: Round 11
11:00 AM: Round 12
Lunch Break until 1:00 PM.
1:00 PM: Round 13
2:00 PM: Round 14
3:00 PM: Round 15
Dinner Break & Deck Check until 5:00 PM.
Now, here's where things get sticky and I'll QFT ExoByte:
Major Magic events do a Top 8 cut, regardless of event size.
The larger cut you're discussing is the cut to Day 2, which is MUCH larger than for Pokemon. however, their VERY top player cut is MUCH smaller and does not go larger than 8. That said, I don't see a HUGE issue taking cut to T32 at this point (even if it meant that I wouldn't have made cut this year under these hypothetical rules). Honestly, T32 makes more sense to me as that's where the physical prizes ACTUALLY start. You'd be looking at something like this to end Day 2:
5:00 PM: Top 32
6:30 PM or 7:30 PM: Top 16 (depending on 2 of 3 or 3 of 5 top cut)
Finish @ 8 or 10 pm.
From here, your Day 3 stays more or less in tact with your top 8 taking over:
Day 3
8:30 AM: Be seated
9:00 AM: Top 8
(Food provided for Top 8 inbetween rounds.)
11:30 AM: Top 4
Finals prepared after Top 4.
3:00 PM: Finals
5:30 PM: Awards
Finish @ 6 PM...
...if you do this the way it has been done in the past. It is also interesting to note that M:tG DOES NOT use time in their Top Cut. They instead ask the players to play at a normal pace and issue warning and penalties for slow play, even inside of untimed Top cut. Usually, this is not a huge issue (most Limited events in top cuts, por ejemplo); however, GBs nationals this year ended up having a 3+ hours final match. So a complete lack of time limit may be unreasonable but owrth testing. But it might be interesting to pilot some of these ideas at the upcoming early Regionals or two?
Personally, I think 3 of 5 in top cut is a bit much before Top 8. However, after that, I can see 3 of 5 being the ultimate skill tester that is needed of the top tier players. I also agree on the fact that T1 is WAY over powered, being able to pull of both Trainers AND Supporters T1. One the two of those should be barred from T1 usage at the very least (personally, I'd choose Supporters as their effects are more-game altering and there are not many trainers you NEED T1 outside of Communication for search or PP for donking purposes).
I do think something needs to be changed in the game, because games are WAY too swingy right now as far as luck is concerned. As far as your hierarchy of players go, I'm solidly in that 50% bracket and really didn't play well enough IMO to make cut this year. Yet somehow, through about two-three rounds of MASSIVELY quick set-ups while my opponent were only able to durdle up a few basics, I was able to luck in. Trainers and Supporters T1 were the BIG things that let this happen. One of these needs addressed for sure.
~Cardz.