I'm seriously considering using silicone wire on my loco build because of its flexible properties and lightness, so I ordered some as samples to experiment with and this morning it arrived by post. My first impressions were noticing just how springy it is and how easy it is to trim... I cut a ring into the insulation with a Stanley blade and it literally separated with ease, no need I'd say for wire trimmers and setting the depth of cut. Now I ordered 20AWG as what a calculated as being sufficient for maximum current draw on an O Gauge model using Mashima 1833 motors but please tell me if I can get away with using say 22AWG size or 24AWG which is telephone wire size. The reason I'm leaning towards silicone wire as against plastic coated wire in confined spaces is because I've experienced trouble with sprung pick ups not springing on my Hymek build, the pick up tips have worn and contact is lost so a flexible wire would help overcome this issue which has currently brought the D7044 build to a halt. As can be seen by comparison with the penny the wire does look quite thick but is similar diameter that came with the Big Jim F5 kit. Just for comparison again the last picture shows the teal coloured wire that came with the BR Standard 4 from Scorpio (Transport Age) reworked kit. Anyway all opinions / comment welcome please.