I used light (hard) pencil without any problem. Paint is usually thick enough to mask the pencil lines. Thinned light coloured paint (with a small, pointy brush) for sketching works fine too. Rather easy to make corrections too.
@WimVDD started
London Fixed Gear and Single-Speed is a community of predominantly fixed gear and single-speed cyclists in and around London, UK.
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I used light (hard) pencil without any problem. Paint is usually thick enough to mask the pencil lines. Thinned light coloured paint (with a small, pointy brush) for sketching works fine too. Rather easy to make corrections too.