Seems there is a line of code that gives us problems in blindscan. The problem description is blindscan for transponders does not take very long, but the service scan for channels in the found transponders can take an unusual amount of time.
I find there is a line of code in the enigma2 blindscan that forces a network scan for the found transponders. A network scan works great in Europe where satellites are designed for it, but a network scan in North America only causes the transponder to search for something that does not exist! Here is the code that causes this:
The fix is easy enough:
I guess this has been slowing the blindscan in the Vu+ Duo2 and the Edision OS Mini. I would also "guess" this is the reason that the blindscan is terribly slow on the Linkbox receivers which are closed source.
A Network Search or Network Scan is great for other parts of the world, but it should be avoided and not used in North America unless maybe you are scanning a Dishnet bird or other pay satellite service.