I am right handed,which side zipper do you recommend ?
I am also right handed. I found the left hand zipper easy to use with my right hand, since I was reaching across to the left, thus, the range of motion was greater than it would have been if I was trying to operate the zipper with my left hand.
I believe it is more about which side of the sleeping bag do you prefer to enter and exit - I also sleep mostly on my right shoulder so I bought a bag with a zip on that side. The zip is easy to use either side.This bag is an amazing product - I used it for 3 months throughout the Western USA, August to November and from sea level to 13000 ft and down to below sea level in Death Valley - I highly recommend the Blue Kazoo.