I love the pine pellets, that's what I use with my guy (mixed with newspaper pellets for a softer texture). One question, are you just mixing the urine soaked sawdust back into the rest of the litter or do you scoop it out completely? That can make a big difference in odors, and even though the manufacturers say you can just stir it back in, I'm not a fan of that technique. It means the cats have to walk in their pee! I use a little garden shovel to remove all the waste and then sprinkle a couple scoops of fresh pellets on top. My cat has 3 litter boxes, 2 of which are upstairs in a main part of the house. There is no odor whatsoever and if it wasn't for the 4 cat-trees in my living room, you wouldn't even know I had a cat.
"To close your eyes will not ease another's pain." ~ Chinese Proverb
“We must not refuse to see with our eyes what they must endure with their bodies.” ~ Gretchen Wyler