Join Date: Oct 2006
Location: Stuttgart, Germany; Portland, Oregon
I'd recommend that you buy some spare patches as long as you can get them from the same source as the first ones.
You will need to replace them sooner or later because they get filthy and / or will tear.
And since you had to dremel your carpet it will be easier to have replacements of the same size ready to go.
You might not find that size again in a year or two.
I had to replace mine twice already since I first did this mod in 2007 or so.
I was lucky to find replacements which were slightly bigger than the original ones.
If I die, my biggest fear is that my wife sells all my toys for the price I told her I bought them for...