Michael, should have clarified, my comments on Femi vices were in regard to the 782 series, noted that other models are available!
The basic cutting of bar against the moving jaw is not really an issue on this device, especially if you mod it to restrict the jaw lift. It could become an issue if you are attempting 'precision cuts. In that case you may need to get inventive with various jigs, fixtures, fittings etc.
In my limited experience, the metal bandsaws I have seen, the blade rotation has been in the anticlockwise direction and wood bandsaws in the clockwise direction. I have used TuffSaws for replacements and for both types of blade, the tooth orientation has always correctly matched wheel rotation (ie haven't had to do any blade twisting).
Now I am not suggesting anyone attempt this, but if you felt really strongly that you absolutely had to cut towards the fixed jaw on the Aldi, because it would be a mortal sin to do otherwise, then you would have to find away to reverse the direction of the motor AND flip the blade so the teeth point in the direction of blade travel.
Clearly you DON'T want to be doing this if you are planning to use the saw in the vertical mode! And in any case, I am not sure what the practicalities are of reversing the motor direction on this device, whether you risk damaging the gear/drive arrangements, motor, controller etc. it is hard to say.
Nevertheless, If some brave soul wants to experiment with their shiny new saw and report back to enlighten the rest of us…..