Just out of curiosity - how and why does lead affect resale if it is removed?
Incidentally, on someone's suggestion, rather than sand (which tends to attract moisture) I used kitty litter to load my Forests. Don't laugh - it smells nice, does not contain or attract moisture, and can easily be poured/ vacuumed out at sale time. I was able to get maybe 7-8 pounds in each speaker. It did tighten the bass.
Incidentally, on someone's suggestion, rather than sand (which tends to attract moisture) I used kitty litter to load my Forests. Don't laugh - it smells nice, does not contain or attract moisture, and can easily be poured/ vacuumed out at sale time. I was able to get maybe 7-8 pounds in each speaker. It did tighten the bass.