I sat the cpl (H) with Dragon and found the course to be very good.The CGI is extremely knowledgable and the back up is there if you need it.The first module consists of a week in class and 5 exams with the second module lasting 2 weeks in class with the remaining four exams.The course notes are taken from Bristol's course and the subscription to the on-line
question bank is without a doubt the key to achieving a high grade in these exams.When you have achieved a pass in all nine exams and pass the skills test you will recieve a CPL(H) with JAR-FCL ATPL(H) theoretical
knowledge credit.This credit does not run out unlike the ATPL(H) exams.
You can add your (IR) theory exams at any time.There are seven exams to take for this but as far as I know there is no specific (H) IR course.
I would have no problem in recommending Dragon as an alternate to Bristol
and I found all of the staff to be very friendly and efficient.I hope this gives you a bit of help with your decision and best of luck what ever route you take.