Do yourself a favor and skip the CRJ type rating. Save yourself A LOT of money. Your better off studying the Jepps and AIM in and out.
I do fly for SKYW and can tell you from experience that they (hiring) care about instrument skills and knowledge as well as stick and rudder skills way more than equipment. A guy who can describe the prop on a Dutchess in and out will get hired over a right seat Citation guy who cant describe the engines EVERY TIME!
Yes, you'll probably never do the "turn time twist talk etc" of C172 instrument flying but it is important to everyone you fly with that you know that stuff. You WILL be a$$-n-elbows and the right seat is not on the job training. When you go to training in SLC no one will teach you instruments...your expected to have a basic skill set and I think most who wash out knew some book stuff to get thru the interview but did not have the instrument skill SET.
And finally..I didn't mean to imply the above mentioned schools were bad. It's just very frustrating to see and fly with people who did not bust their hides to get this job because it shows in everything they do. Poor radio technique, preflight prep, look and act sloppy and are willing to work for peanuts because they don't understand or appreciate their "worth". It drags them and us down.