Editing OO gauge (section)

== 4 mm finescale standards ==
Many experienced modellers{{citation needed|date=January 2014}} find the OO standard produces a "narrow gauge" appearance when the model is viewed head on. Greater accuracy is possible using either EM gauge or the closer-to-exact scale [[Protofour|P4]] track.

Whilst flextrack is available for both EM and P4 gauges (from manufacturers such as C&L Finescale, SMP and The P4 Track Company), ready-to-run (RTR) point and crossing (P&C) work is not available, so this trackwork must be constructed by the modeller, although RTR turnouts in EM gauge manufactured by Peco are now available from the EM Gauge Society. Kits for doing this are also available from the aforementioned sources amongst others. Several of these kits are also available to the OO modeller who aims for more realistic track since most RTR track is actually scaled to HO and does not represent any British prototype, and the sleeper spacing is too close for scale. EM gauge has slightly overscale flanges and flangeways on point and crossing work; P4 is closer to scale but the smaller flanges and flangeways on P&C work expose poor track construction.