It may or may not be relevant to you but I can use my Pittsburgh MicroSequence to Trigger (when it hits a high note) and also control Pitch from the same CV Pitch output. With modules like the 2hp Pluck & Bell they have Polyphony in their release time so it can create some nice effects.
Enjoy your spare HP, don't rush to fill every last space, this is not like filling sticker books. Resist the urge to 'complete' your rack, its never complete so just relax.