Hey JPAN, just thought I'd stop by again and give you some feedback and two suggestions for the next release.
I also think you should leave that the way it is. It's more complicated, and the current way works fine imo.
And for the suggestion, now that a RTC has been implemented into FR successfully, it may be time to step it up on the berry front. My suggestion is to add the R/S/E berry system into your engine, utilizing the RTC by interdepth and ZodiacTheGreat. The growing cycles for each berry can be found on each berry's individual Bulbapedia page, along with other miscellaneous information you may need regarding how it should turn out.
And here's a totally outlandish one that I personally wouldn't really need, and would probably take insane amounts of work that I really don't want to put you through, but might be something to keep in mind. Pokemon Contests from R/S/E? I just thought people might want that ported to FR. I don't really care either way, but it's something to consider.