I just did this myself and it worked great. I've used these connectors before and know how to get them out without messing them up.
Take a paper clip and beat the end of it flat. This is kind of hard to since its already skinny and you will have to use a metal surface to hammer against. I tried to take a picture but it doesn't look very flat but it is.
Then insert the paper clip in the back of the connector on top of the wire. Don't pay attention to the color code in my picture because I didn't take it till the swap was already done. When the paper clip is inserted correctly the wire will slide right out. Its hard to explain but you can kind of feel a pop when its correct. Don't pull on the wire until the paper clip is inserted because that will make it harder to come out.
I found Dan's write up about 2-3 years ago and did the mod. I like using the finger pads and this allowed me to downshift on the left side, and upshift on the right side using the finger pad. Of course, now the thumb pads are upshift for the left, and downshift for the right.
I changed my (+) (-) indicators with arrows. Here is a pic of that. I changed my (+) (-) indicators with arrows. Here is a pic of that.
I used Microsoft Word Shapes format.
I then printed them on Ink Jet Water Resistant Gloss Full page Labels and cut them out to fit the thumb paddles.
Here is the link to the labels -- http://www.labelsbythesheet.com/items/water-resistant-vinyl-labels~inkjet-/premium-water-resistant-vinyl-full-sheet-labels/list.htm
and I've added a PDF of the Arrows (which look like this) --