I prefer dry pailing as there is less mess. No heavy wet nets to drain and it seems to make no difference to the cleanliness of the nappies in the long run. It also means you don't have buckets of water around the house which isn't exactly safe with small children.
To dry pail just put a few drops of tea tree oil in the bottom of the bucket add the laundry net and then add nappies as needed. You may want to add a few more drops of tea tree part way up the bucket. Then when you come to wash run a cold rinse before your main wash. Then wash as normal. Poo is a protein stain so if you hot wash it without a cold rinse first it you will fix it. Though if you are lining the nappies properly then you shouldn't have a problem with dealing with poo.
Well if the fleece liners are really bad it may be worth giving them a swish in the toilet or under the flush if they are particularly sticky but I wouldn't worry too much as the machine will take care of it. Fleece liners don't stain but it is worth getting as much poo of the liners as you can just so its not in your bucket smell wise. When you baby is eating 'solids' you'll need to swish off or allow the more solid pooh to fall off into the toilet.
I dry pail and do the toilet wiggle with the fleece liners. With bfed poo though I used to power shower them off in the bath - it all goes into the sewage anyway. Doesn't work with weaned poo as too lumpy.