Right, so I went and made a thorough overhaul (fixing some bugs I wasn't aware of along the way): addperc_v2.zip
This should be 100% vanilla functional with preset system in place, proper number boxes for typing and no extra abstractions needed. Thanks @shakfu for not only watering my vanity, but also coming up with smart solutions!

It could be improved a lot though. Text import/export for presets and [savestate] implementation comes to mind. A couple of LFOs would be nice too...

@bocanegra Great stuff. Love the rapid iteration. Version 2 vanilla is much better! Thanks for sharing your sweet drum abstractions.

I've had great luck with just using a couple of noise sources through some filters and then 4 osc~ that are setup to FM on another and have each tone's pitch controlled by a Frequency envelope (line~ with a curve function) as well as an amp envelope (line~ again with a curve control). For hats and cymbals I use almost the exact same setup except the osc~ objects are replaced with phasor~ objects and I use simple Bipolar AM ahead of the filtering. Because of the way that the vanilla filters work, you will probably also want to scale the amp as you adjust the q factor.

With this setup I can make pretty much any sound that I can make with microtonal (my favorite drum synth). For extra fun you can run each drum voice in a single sample block sub patch and do some nifty feedback and filtering as well.

@nuromantix be careful with this rimshot patch, it will blow your ears out..do not open!!