THE FACT ABOUT ROUND CONDUIT THAT NO ONE IS SUGGESTING

Cable drawn nicely with the reel will push down conduit a good deal less difficult than kinked and straightened out cable (it by no means thoroughly straightens). This will make a big difference.But inexpensive oval conduit from Screwfix can be a pig to work with I find and bends/crimps alone if not addressed with care. Is likely to be value trying