Personally i'd be inclined to stick with the small block 8's and see what they're not doing that you'd like your tyre to do and go from there. If you decide to get rid of them right away, i'll happily take them off your hands.
@mmccarthy started
London Fixed Gear and Single-Speed is a community of predominantly fixed gear and single-speed cyclists in and around London, UK.
This site is supported almost exclusively by donations. Please consider donating a small amount regularly.
Personally i'd be inclined to stick with the small block 8's and see what they're not doing that you'd like your tyre to do and go from there. If you decide to get rid of them right away, i'll happily take them off your hands.