How to turn off other WYSIWYG editors when X-standard is available?

Thanks for the X-standard module. I'd like to use X-standard for my own work but I'd also like to have TinyMCE available for the more casual users. I think the two modules are clashing because when I edit a edit-body field with modules both available the changes I make in the edit-body using X-standard tools don't "take".

There's probably a simple way to check to see if X-standard is available before loading TinyMCE but I'm not sure how to do it. I'd tried deactivating the TinyMCE module and only activating X-Standard access on a User Roles level (e.g., only Site Admins have X-Standard, all other auth Users have TinyMCE) but I get both modules unless I totally disable TinyMCE for everyone.
Thanks