Kyle is somewhat correct, the normal appointment for a Cadet Chief Warrant Officer is going to be Cadet RSM. This falls logically because there will only be 1 C/CWO in a given corps while there may be multiples of C/MWO's or C/WO's. In a small corps (less than 30) the corps may only have 1 C/CWO or C/MWO so either rank can fill the appointment at the discrestion of the Commanding Officer. They would still need to meet the pre-requisites for qualification at rank, so if they are a C/Sgt or above they should have already completed NSCE, so they should have the requisite knowledge to effectively handle the position, but wil likely need more guidance from their staff as they are still gaining the experience we would normally expect of someone in a cadet command position.
That being said, it may be beneficial to appoint your most senior cadet to other senior positions as per annex B of 40-03 first and gradually let them take on new responsibilities and allow their title to change as their realm of responsibilities changes. If your most senior cadet (read highest ranking, no relation to TI) is a newly promoted and qualified C/Sgt why not start by giving him the responsibilities of a Platoon Warrant, still working above the normal appointment for his rank but shows faith in his abilities, then grow him into a CSM, and eventuall an RSM. Not having an RSM isn't the end of the world, but throwing someone into the role when they aren't quite ready could have more ill effects on the corps in the longer term. Let it happen naturally, and I'm sure your staff are already well aware of this, trust them to do the right thing.
