Shouldn't conflict at all - possibly if the mods use the same Def's, though in that case the mod further down in the load order should take priority.
In hindsight, I should go through and add a unique tag to all my Def's, but doing so would be a big change that required new safe files as it would wreck saves.
In hindsight, I should go through and add a unique tag to all my Def's, but doing so would be a big change that required new safe files as it would wreck saves.