[2022] Free XP Signal flags

The entire system is not a 1-1 exchange. You cannot compare them this way and expect it to make sense.

If the only thing you used in a match was an Ouroboros, then your FXP modifier was +777% on the 5% of XP.

This would (if the system was 1-1), turn into a 400% FXP modifier now, seeing as FXP is now 10% of BXP.

Since a single Ouroboros was NOT likely to be the only thing you run when trying to earn FXP, you'd add all the camo / Signal bonuses together

That now looks like the +2400% and +7200% - which reflect maximum "sets" of FXP that you could earn.

So if you say, "My 315 Ouroboros" were turned into +400's - then that is only true IF you had no other camos / signals, which as Ahskance points out, is extremely unlikely.

I myself have quite a few of the Red and Blue FXP bonuses because I had a lot of Dragon signals and a lot of the high tier camos from playing so many clan battles over the years.

My point is, you cannot do a 1-1 conversion and expect it to be maximally beneficial.