Submarine Leveling & Fight Club

So I have a question, I've been doing subs for a while, but is the way I have been doing is sort of old?

This is my present submarine leveling and gathering:

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Submarine guide:

Rank 35: Coel pressure hall, shark stern, unikiu bow, whale class bridge (build)/ areas to search: kanayama, komura, the wreckage of discovery 1 or if able glittering sand bais, the wreckage of the head

(To get cocobolo: coel hull, unikiu stern, coel bow, coel bridge (build): areas to search: south isle of zozonan, wreckage of the windwal. north isle of zozozan)

75-104: Modified shark hull, modified shark stern, modified shark bow, modified syldra bridge: Unidentified Derelict, The Wreckage of Discovery 1, Concealed Bay, then the Wreckage of Head (If able, do 4 at 90)

105: Modified shark Hull, modified shark stern, modified syldra bow, modified coel class bridge (edited): Undendified Derelect, Deep Sea Site 4, Wreckage of Discovery 1, concaeled Bay, Wreckage of the Head

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But lately I've been seeing a guide that has this set up:

Rank 85: WSUC: 24h Fight Club OJ

2) -Rank 90: WSCC: 48h Fight Club
- Rank 90-100: MROJ then JORZ
- Rank 114: MROJZ

(I don't know if these are normal or modified, but I assume normal.)
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I know there are quite a few ways to go about doing this, but I mainly focused on Fight Club. I have a good enough amount of Gil saved up to make parts, but I would like to know the general recommendation that people tend to lean towards.

If possible, any better suggestions for leveling would be nice to have if there is room for improvement.

leveling and unlocking sectors is pretty much whatever, everything gets you closer to your goal.

your final "build" depends on your activity. Can you send them out every 24, 36 or 48 hours? pick whatever suits your work- und playtime schedule best. The 36 hour build is worthless if you can only resend them every 48 hours for example

https://docs.google.com/spreadsheets...gid=1825335500