I have got my Daedalus convertor now, (though still having trouble spelling it!) It works fine with the games i have tested it with and no scaling problems - like with my MVS Convertor II. I had some initial problems inserting the cart because i had to use more force than i thought i would and i was being ultra-careful not to damage the MVS cart or the convertor. Now i know what i'm doing and i'm not worried about damaging anything i can do it fine.
I've never used a convertor when you attach the cart side on to it before and i was inititally worried about this, but once the cart is in there, its fine, stays in, and doesnt seem to pull on the Neo Cart slot either. All good so far, David was very communciative - keeping me informed as to when the convertor would be sent, and helped out with all my questions. So would def recommend to anyone thinking of buying. Nice to finally have a convertor that plays all games - it's taken a while!