sneak_peter said:there's a cuemaker in germany, who have is own synthetic tips, called "oliver stops h3000"
look here: http://www.os-cues.de/components/com_virtuemart/shop_image/product/7f30330ce7354ffec629da1b4e7365d1.jpg
they are on the very hard side, but they are playing quit good!
a second alternative is also from another german cuemaker, named peter ernst.
look here: http://40216.webhosting20.1blu.de/001.html
Any idea where I can get one of those tips?