There are currently no plans for UltraChannel updates.
As far as using UltraChannel with SplitEQ, I can’t say there is a “best” way to use it since it depends on what you are trying to achieve and how you use it. I would suggest experimenting with how you are routing the 2 plug-ins together. You may find that using SplitEQ before UltraChannel will help tame a signal before applying gate/compression, or you can try using SplitEQ after UltraChannel to fine-tune your EQ or add some sheen or width.
Please be aware that we’re a small team and we can only devote our resources to a limited amount of projects at a time. We do make it a priority to keep our plug-ins updated, as can be seen with the UI and DSP updates to the Clockworks series of plug-ins.
What I meant when I said there are no plans for UltraChannel updates, was that we do not have any updates on our roadmap currently. We’d like to update our older plug-ins to have better, resizable UIs, but I cannot provide any sort of timeline for when that may happen.
Thanks for your patience and support as a customer.