I know, which is why it's usually better to start with a large modpack (or large universal configs, like what Velotican did for FTB back in their 1.4.7/1.5.2 days when all their configs were different for each pack)its easier to remove than to add
RR is one of the largest, which is why I start there.. the only mod I add to it is ATG. The rest is easy removals