So does the concentration of silver added to the salt+gelatin have an effect? In otherwords, If I add 1mol at 10Ml per minute, is that the same as 2 mole at 5ml per minute? or would this change the crystal structure?

It would seem that less concentrated solutions, added at a higher (and probably more controlable rate) would result in a more monodisperse solution.

Is it advisable to "dump" part of the ag at the start of the proccess, to nucleate tiny crystals in solution, then slowly add the remainder to grow the nucleated crystals?