Support larger Table B sizes. Until now, we have limited Table B to less than 0x40 entries but by using an extra byte to hold the Table B index in RouteArc objects, the number of entries can be increased up to a new limit of 0x100. Just discovered that Table B can actually be larger than we have been using. Table B overflow is one of the criteria for dividing a route centre so by allowing them to be larger, it should reduce the number of route centre splits. Having said that, on the GB map data, only a few Table B's grew larger than the previous limit so I think the benefit is probably marginal. Still, for complex city regions it could make a difference. I have verified that for the GB map, those roads that cause a Table B to be larger than the previous limit are routable as normal. Anyway, please test if you can and as long as it doesn't introduce any problems it's worth incorporating this. Mark