Drawings for my design/process.

I am interested if you can help me, I have a concept and a process that works but have recently adapted it and would like the design to be different, I have the new design in mind but I am looking to get drawings of it and a patent but I do have a patent company I work with, so we will need to discuss this a little further weather it would be a good idea to change or not.

Please let me know, how you normally like to go fwd?

Kind regards,

Bill.