+1 on the silk bottles. I've been swapping 2 a day on my nutter as well. They have a collar under the cap that lets you unscrew the bottle without squeezing it.Silks are so much easier. Cap top unscrews without any problems and easy to put back on. I have one of those in my Nutter. I needed something easier to fill cause of how thirsty it is
Definitely thirsty little buggers. I figured out after my hunt for a bigger bottle that I'd have to have a 16ml bottle to last the day.