Perhaps a deeper explanation of said methods would help. Here's how i do it:

Everything is pattern based. All my shit has it's own sequencer, and for the rack modules, i use an MMT-8. Here is a list of what i have how it's used...

TB-303 (duh)
TR-505 (sequences the Drum Station)
Novation Drum Station (808/909 sounds)
Emu ESI-2000 sampler (various drum/vocal samples, and loops)
Alesis MMT-8 (sequences the sampler and sometimes the D.S.)
Korg ER-1mkII (other drum sounds and various zips zaps and fwips)

I write everything down ahead of time. What patterns on each piece go with each other, what waveform the 303 uses, if the pattern is tuned up or down. What sounds in the sampler are assigned to each track on the MMT-8, etc. This works wonders and there's really no chance of a fuk up cause no computers are involved. Also, when i had a 707, i almost always kept that in write mode to change it up on the fly.