Green Nipples!
I too rememebr with fondness the Toshiba nipples - in fact I think I have the bag of 2 green spares tucked away somewhere long after the laptops were consigned to history!
When "company policy" forced a change to trackpads, I had a lot of trouble adapting. One of my major problems was that for smaller, more delicate movements of the cursor i instinctively seemed to use lighter pressure, and this sometimes caused what I can only describe as "finger bounce" which the trackpad interpreted as either one or two clicks on the mouse button, with unwanted side effects. Also, if one really did want to position the cursor and then tap twice, if you did not tap your finger in the same place, ie lift it staight up and down, then the cursor jumped away from where you had carefully positioned it.
I suppose it was the classic case of running into problems when using the same interface for 2 different functions.