If I hold the middle button while on a link, scroll down and back up, then release the middle button while the mouse is on the same link, the link is then activated. This is quite annoying and didn't happen with Grab n Drag. Is it possible to disable activating a link once scrolling has been performed? It is very easy to hit this problem on pages with many links, e.g., the BBC news page http://www.bbc.co.uk/news. I often middle click on the "main" story (a huge link near the top) scroll down to see if there's any stories of interest, then scroll back to the top. This often inadvertently triggers opening the main headline link.

Otherwise great add-on. +1 with the request to display a different cursor while scrolling.