Still use the Ren 6 here a bit.
The only preset that I made is called the De-pee-er
Which is basically a hpf filter set right under 200Hz to zap plosives.
Surprised that no one has marketed a De-pee-er.
I also use the Ren EQ plug for treating plosives in mastering, but with a low shelf preset to either 60 or 90Hz, and cutting either -6 or -9dB, depending on the situation, and as an audiosuite plug in PT HD, processed pre-pitching. It's very fast and easy to use, multiple passes sometimes. Luckily many mixes we receive these days have already been de-popped by the mix engineer, unlike olden times when home & project studio mixes were filled with many issues to repair :~)>
honestly I still really enjoy doing repair moves, especially with an attending client present, as long as there aren't dozens or hundreds to do, doubling the time on the session clock.
as to the RX spectral repair, I find it most useful for reducing acoustic guitar squeaks. It's amazing how many times there'll be a delicate finger picking intro to a song, & when the guitarist changes chords with new strings and sensitive mics, there'll be a huge SQUEAK spike to jar the listener. Often a tightly focused EQ can do wonders here, but the RX sprectral repair can do miracles, Star Trek level repairs.