if you run the hose directly to the actuator you run it low boost ALL the time!
the amal valve opens and let the compressed air "leak" into the airbox, see the boost pressure from the compressor, presses on the actuator and makes the wastegate open prematurly (Spelling...)

So don't run it directly from compressor to actuator. Mine was like this when I got my saff. It ran 0.6 bar or so, now with amal valve on it runs 0.9bar std.

Cheers Kennert