I like the idea of giving the ability to be a normal HCIM assuming you haven't died, all it does is give you the access to a bank. Basically gives the same progression in a way. HCUIM die to become normal UIM, which become a IM if relegated. Convert it to a HCIM, die and become a normal IM. It all leads to the same path.
Normie - Normalize HP (Maxed)
Group Ironman - GIMP HP (Maxed)
Elite Ironman - Surprise HP (Maxed)
Ultimate Ironman - Mobile HP (Maxed)
Hardcore Ultimate Ironman - No Bank HP (1800/2277-2/23)
Realism - Realistic HP (444/2277-0/23)
Ironman - HP Forever (1405/2277-3/23)
Classic - Classic HP