I hope this is the correct forum for this question. I bought a Yashica a couple of weeks ago and it came a roll of Fuji Velvia and Agfa color slide film. I'm only set up to develop black and white and the closest lab that will develop 120 is over an hours drive from my house, so I thought I would try one of the mailers. Has any one used these, have any suggestions on which company to choose.