we cloth diapered willow from birth... we had absolutely no meconium stains. I do have a minishower... so we sprayed diapers, then just threw them in the pail and washed normally. Didnt have a problem. I'm not sure if it was because of the mini sprayer or not. I also had meconium on the shirt I was wearing when I gave birth and that came off just fine (no stains) and we didnt spray that. I wouldnt worry about it and just use the CPFs
You could always throw the diaper in the wash right after you take it off and give it quick cold rinse.. then just let it hang out in there till you have a full load. I think we had meconium for a day and a half? not much longer than that.
HTH!

HTH!