[quote="sq225917, post: 685589"]well if you can knock up four disc to take some 6mm balls i'll trade you four balls for four wooden discs. they should arrive back end of this week,though i'll be in spain until the 17th. if you fancy the trade let me know, i'll get her in doors to post them out.[/QUOTE] Thanks very much for the offer; I've been very pleased with results I'm getting from ball bearings, so will stay with those for now, if thats ok. I've got 45mm cones (tapered) nearly ready if you're interested. Can be drilled for 6mm balls, no probs. (Piccy if you would like.) Also the 45mil discs with 13mil balls as in the (above) pic. I Should be able to match up four with little difficulty. cheers, D.