Cable drawn properly with the reel will force down conduit lots much easier than kinked and straightened out cable (it hardly ever adequately straightens). This can make a large change. But cheap oval conduit from Screwfix is often a pig to work with I find and bends/crimps alone if not https://minitrunking91123.livebloggs.com/35266522/little-known-facts-about-oval-conduit