Hi. I have been pumping for about 8 years now. I have always opted for the longer cannula size - 9mm on Medtronic, and for about 3 years 8mm on Roche. I have recently switched back to Medtronic and was accidentally sent the 6mm sets. I am on my third site, and it almost seems as though I am getting much better results on them. I had one bent cannula - not sure if this was just a fluke, due to where it was placed, or whether this is something that I will struggle with if I opt for the shorter cannula. I use 90 degree ones.
Has anybody used both shorter and longer ones? And what has your experience been? Do you find that one gives better results than the other?