I think it's already on the wish list, to have it user configurable to be a volume or select as the default.
In professional radios you usually have it configurable in the programming. Of course it will always be fixed to select mode when entering a menu or setting. When you scan and often find that it stops on conversations that you're not interested in you would like it to be in select mode but if you often have different volume levels in different systems, and you don't have any audio AGC like in the SDS scanners, you probably prefer it to have volume as default.
It's a very simple change to the firmware that probably takes 1 minute to do but it is also the menu system and Sentinel that then needs to have that function added. But if the configuration where done as Whistler did with their shortcuts, that are not available in EZ-Scan or the scanners menu system, then it doesn't add much cost in development. Something like holding in the volume control for 2 sec could switch the default operation mode without any more added than a single confirmation beep for one mode and a double beep for the other.
/Ubbe