I am new to the game and there are some subjects i am going to cover wrong, but i say atm there are some styles duos are hard to train, because have with less combining stats than other duos atm, meaning more trainers, more spars, more costly to develop a top fighter. If you choose to train this duos you might end with three situations: i ll put with examples numbers: a 90% proficienct one style and 70% prof in the 2nd style. 2nd option 80-80 proficient in both styles. Or add an 3rd style to it and be like 80/ 70 / 70 in choosen 1st,2nd n 3rd styles. This is all costly and would leave holes in top fighters builds. All of this happens much less in styles with less stats variations we see in top camps, for exampleAs ive been seing the top camps,l: PG/TGT (easilyont need train tgt too much), SIO/WnS, PtP, LnP, possibly WoHF/ SnS and Ippon/ CnS. I see Ll/CS and PL/CnL with non matching lefts, and besides the possibility to build a 3 style fighter non super profiltient in none, i dont see any advantage in building these camps. Maybe im missing smthing. Maybe reason we see less of this camps is if you build camp focused in one style, the second will have holes/being the weakspot on the fighter. 8pt/CD seems a hard one to develop. If you have same spars and similar WRV its better to choose styles combos needing less trainers and spars, for like 5 stats with 3,5 stars or higher, and less stats waste when you switch to the other style. In the end having a 85%/80% fighter is much better than a 85%/65/60% style or an 80%/70% fighter. I may be missing some hidden advantage of some styles or mistaking the stats, but top camps seems to specialize in the most cost/benefit duos (Exception 4 me is 8pt/cd, there are many camps, but still spars expensive).

Since there are 3 tiers now would it be possible to set the popularity so that the bottom 25 percent are in lfc and the top 25 percent are in efc

The middle 50 can hang out in Preliator or PFO coughpleasecloseunocough

I suggest a square next to the option challenge all that gives option to choose < = my years pro, > = my years pro, or maybe you could filtrer the interval of years pro you would like to challange (ex. 1-3 yp) . This would buy a lot of time if we can chalange similar year pro with one click.

Could you put an experience bar to a fighter? Like every fight realized augments a little fight experience. It demostrates more skills and a best fighter

A fighter that has more level than other fighter will have a little bonus like more probabilities of win or similar thing.