I have tried the caster oil packs. I did not find they worked better than a heating pad. But, they may for others. I just put a heating pad over the liver about an hour before I drink the grapefruit juice/olive oil emulsion. I would strap it in place with a long ace bandage. I would drink the juice and go to bed with the heating pad in place and leave it on till the morning.
I used two different approaches regarding vibration. I would either use a vibrator in the morning (over the liver, moving from side to middle of the sternem area) or I would use it after drinking the emulsion at night for about a half hour. I would dring the emulsion, wait for a half hour and then use the vibrator for a half hour as described. Seemed to increase what came out and really helped when I had stones that were "stuck"