Currently the only way threadlings are able to synergize with mods is if you throw the grenade, no other threadling source synergizes with the buildcrafting system. This is especially bad for warlocks since our whole subclass pretty much revolves around the lil guys and there's no way to make them work with mods as even consuming the grenade makes them no longer count as grenade damage. All I want is for em' to synergize with mods in some way. edit: needlestorm threadlings may count towards mods like power preservation but i have not tested that