This forum is dedicated to discussions pertaining specifically to the Motorola ASTRO line of radios (those that use VSELP/IMBE/AMBE), including using digital modulation, digital programming, FlashPort upgrades, etc. If you have general questions please use the General or Programming forums.
I can't be 100% sure with the XTS's, but all other radios that I am aware of that are cloneable must have the same feature set (FLASHCODE) and model number. Only then will the RSS allow it. I know that this is true up to V8 Astro RSS.