Sennheiser mm70 ip headphones - double click speed (general iphone function?)

Hello,

Thanks for reading my post

I love my mm70 headphones but the remote drives me batty! If you're out for a walk and you don't hold the remote exactly right, it's hard to double click to the next track.

From looking at the other headphones on offer, they all have similar 3 button designs and are more expensive than what I have now.

Is the speed of the double click controlled by Apple or Sennheiser? Are all the iphone-remote-headphones the same?

I wish I could control the double click speed - there is an interesting innovation - click once, then click and hold to fast forward within the track.

This is meant to be simplicity but it's not ideal...

Thanks for your advice,
Matt