The old slower beat Asian 7750 copy had the same hand sizes as ETA 7750, as The Zigmeister stated in his original reviews. The higher beat has never had the same hand sizes (for some unknown reason they changed the sizes) as far as I know. There are newer slower beat Asian 7750 copies which have different hand sizes to ETA 7750 as well, I believe. I think I've seen a The Zigmeister post stating as much. Or perhaps it was someone else.
If you are doing the hand size adjustment yourself, I don't know how it's done. As you're in EU, you can ask Bricciola, who is experienced with that problem. I'm sure The Zigmeister can too, once he's back from holiday
(edit: hmmmm both Bricciola and The Zigmeister on holiday at the same time.... are they one and the same ? )