Installed recently, just used for first time. Had to give a high rating.
Try this add-on - has some sweet features especially fine speed tuning.

Ability to detach makes for easy resizing and multi-tasking, but once detached, I have to find original tab to find Enhancer control bar again - would be helpful if it's available on the one that keeps playing, or a little button to get the toolbar to appear in that tab.