Question about rounders

In the rounders you earn tokens to advance to the next level. The starting level is $5+.50 to enter. This is the only round you have to buy into and can't use tokens. My question is this if you make it past round 3 and get enough tokens to round 4, do you have to play round 4 or can you reuse your tokens for another round 3 and keep building up tokens?

For those not familar with the rounders, the first 2 levels are very hard. Each round is a 10 seat sng.
Rd 1 1st and 2nd place winners win tokens to rd 2.
Rd 2 1st and 2nd win tokens for rd 3, 3rd place wins tokens for another rd 2.
Rd 3 1st, 2nd, 3rd, 4th win tokens for rd 4, 5th wins a seat back to rd 2.
Rd 4 1st, 2nd, 3rd, 4th and 5th win tokens for rd 5.
Rd 5 1st $3000, 2nd $1200, 3rd $800, 4th $500 or $400 I can't remember.

I now have enought tokens for a rd 3. Another question is this, if you won to rd 4 would you keep going or would you try and build tokens if that is allowed?

Ok one question answered thanks to support. You can use your tokens to buy into any level other than level one.

2nd question though is what would you do? If you won a level 5 token would you go on to level 5 or try and build tokens by replaying level 4?

Level 4 buy in Round four $275+$27.50
Level 5 buy in Round five $550+$55

You can take your rd 5 tokens and buy into 2 rd4 tourneys. Place 5th or better and build. Or go str8 for the prize.

Are these single table, 10 man tournaments?

Yes, and the first 2 rds are a crapshoot in my opinion. Alot of loose play and being drawn out is common. Of course rds 3-5 are alot tighter game. I tried playing them about a year ago and didn't have alot of luck. My confidence is quite a bit better now. I can't think of not making a top 5 in a 10 seater, I mean I know it could happen but as tight as I am I feel pretty confident.

If I am understanding this right it looks like you would have to place in the top 5 in round 4 more than 50% of the time to accumulate tokens for round 5, other wise you would stay even and if you had some bad luck you would be back to the start. I think I would go for round five ASAP and if youo can plce ther you can rebuy back into round 4 if you wan't to. I would hate to try to build tokens and then never get a chance for the top cash prizes. I say go for round 5.

Good luck