your load order is limited to 255 by the engine itself, nothing can be done about this EXCEPT to merge mods like you suggested I merged plugins and reduced their count to 171. Was able to squeeze another weapon mod, but after that any other mod again cause CTD after few seconds in main menu. I dunno, searched and found that there is a limit for REFR around 2kk, but i only have 180k in my load order, so not the case. https://forums.nexusmods.com/index.php?/topic/8703508-object-reference-limit/ I give up and consider my mod list finished XD