Wilco A380 handling.

Here's my problem. I have built an A380 simulator. I am using FSX/Wilco A380. I am eagerly awaiting the release of the NLS A380, it looks fantastic but who knows how long it will be before it's released?In the mean time I want to change the handling characteristics of the Wilco A380. The stock standard FSX A320 has the sort of handling I'm after. The Wilco A380 rolls off a few degrees each time you centre the stick. The FSX A320 stops rolling and precisely maintains the bank angle you've set. How do I get the A380 to handle like the A320? I've tried swapping air files, changing stability etc. none of that works! Any ideas?Regards, Andrew.