Karlin
Timing might have a lot to do with it.
Learning when to quit help reduce the particle - to -ion ratio.
Too long a time period with the process going makes too many large particles, I have found.
'Floaties" show up, silver coloured particles visibvle to the naked eye.
Too short a time with the current flowing means a low ionic transfer.
i don't have much else to offer on this though. Are you, of course, using distiled water?
Karlin