Games :: Virtual Keys In An Attempt To Press Both At Same Time

In many games there are actions that you need to hold Y and then press B , but for snesoid, since I am using my same thumb on the virtual keys in an attempt to press them both at the same time, it doesn't work. It will release y and then press B or just release y. This becomes apparent in games like Super Mario World when you run, then jump, you lose the momentum and just do a regular jump. On the droid x, the only solution I have found is to set B also to a hardware key, like one of the volume buttons, then you can see how its supposed to work when you hold Y then hit B. This affects many other games like DKC3 (jumping while holding barrel). Any help or ideas?