Assuming exp tickets hold the same value as they did during edentisk

*Update: This is worth doing. After looking at how much the typhoon potion offers at various levels, I have concluded that the amount of exp tickets you can save is purely beneficial. Unless all your tickets and pots are going to your main, it's worth prioritizing pots on lower level characters and saving tickets for your main.

I've been looking over the numbers from the identisk sheet and I figured I would share some things I found, I don't know if this has been discussed before. There are a couple interesting things to point out for exp tickets and potions.

The first thing I noticed is that there is a larger increase in the amount of tickets needed to level between 206 and 210. Below is the amount of tickets needed to level to the next level. 204 -> 205 takes 422 tickets.

204 | 422

205 | 461

206 | 503

207 | 549

208 | 600

209 | 657

210 | 428

211 | 465

212 | 503

213 | 546

214 | 593

215 | 753

Now, we can see level 206 to 207 takes 503 tickets, where as 210 to 211 takes 428. 209 to 210 alone costs 657. This isn't much of a big deal since the later levels cost thousands, but it is important to note for setting up an account and getting those 210 links. This occurrence lends the 210 bonk pots more value than they initially seem, which brings me to my next point.

The value of potions and which you should choose from the selection. You can choose from one of the following;

8x 200-210* pots

4x 200-220* pots

2x 200-230* pots

1 200-240* pot

*Maximum level acquired

You should probably always pick the typhoon if your goal is simply to level your main past 240, but if you're looking to spread things out between a main and for link skills, it's not so simple. If you're looking at this from purely a ticket economy view point, there are a few things to note.

Levels 202-210 require 3933 tickets

Levels 206-210 require 2309 tickets (you can do two of these, totaling 4618 tickets)

Levels 208-210 require 1257 tickets (you can do four of these, totaling 5028 tickets)

Levels 216-220 require 3548 tickets

Levels 228-230 require 4522 tickets

Level 239 to 240 requires 3971 tickets

To sum this up, taking advantage of the 8x 210 bonk pots and spreading them among at least two characters, we can save the most tickets, which would be better to use on your main.

*Edit/Update; in regards to the typhoon potion, it is the least efficient option in this scenario. At level 240, choosing the 8x and using them on two characters will net you about 90% of a level in saved tickets, four from 208 will be almost the entire level. A typhoon potion at level 240 will only give you about 77%. The gap only gets worse as you level.

Tldr: level 207 to 209 bad ticket economy, use bonk pot, save ticket, get links.