I'm "virtually" evaluating the HiTI 730 as a contender for my money. Contacted their support (great one, BTW) and asked for the ICC profile for this one to be able to Soft Proof smaple images I'm going to print as a sample pictures in the shop. They kindly sent me the file within 2 days.
Now, Soft Proofing I noticed the White Paper option is disabled (I use PS CS) which is weird since I used to use it rpoofing for my lab printing. Can it be that this option can be disabled by the profile ? (I.e. profile may "allow or not allow" White Paper simulation in Sooft Proof).