Just another hint, you can open up gimp that is too skinny, by coaxing it over a needle that is a little bigger. The pointy end of a needle is tapered, which helps. Also, the reverse works, wind too big gimp around a smaller needle (or pin or anything the correct diameter) just apply a little pressure as you roll the needle. I can sometimes even smooth out kinks & crushed colis on a needle too.
(Now I am wondering why on earth I even try to do this...to save 3mm of the fiddly stuff...)