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There aren't enough links here to justify using multiple groups. A linear scan is much faster than one in two dimensions for a small number of links, so that's what we should go for. This should be reverted. Chris Cunningham (not at work) - talk11:06, 18 November 2008 (UTC)[reply]__DTELLIPSISBUTTON__{"threadItem":{"timestamp":"2008-11-18T11:06:00.000Z","author":"Thumperward","type":"comment","level":1,"id":"c-Thumperward-2008-11-18T11:06:00.000Z-Once_line_versus_multiple_groups","replies":["c-Thumperward-2008-11-20T13:22:00.000Z-Thumperward-2008-11-18T11:06:00.000Z"],"displayName":"Chris Cunningham (not at work)"}}-->
I have now restored the linear version, as there has been no opposition. Chris Cunningham (not at work) - talk13:22, 20 November 2008 (UTC)[reply]__DTELLIPSISBUTTON__{"threadItem":{"timestamp":"2008-11-20T13:22:00.000Z","author":"Thumperward","type":"comment","level":2,"id":"c-Thumperward-2008-11-20T13:22:00.000Z-Thumperward-2008-11-18T11:06:00.000Z","replies":[],"displayName":"Chris Cunningham (not at work)"}}-->