So does that mean that under then new 1 stage process the fibre comes in through the same conduit the the original phone cable used - using the old cable to pull in the new one?
If you mean from outside to inside the property, then no. Separate entry is preferred, the hybrid stuff won't fit through the lead in kits provided, these stop the fibre sagging in the wall cavity and allow for easier replacement if needs be, also you can hide the change from black to white cable sheathing within the conduit in the wall.
If you by conduit you mean the UG duct to the property, then yes ....
Technically (well as technical as OR bods get) 'cut and draw usually refers to the technique used to replace overhead spans. Since poles have limitations on how many cables radiate out to properties within the quadrants of the ring head {based on type of pole, yada yada yada} It is preferred that if the connectorised process is used the existing span of copper dropwire is used to cut and draw to replace like for like leaving both copper and fibre in the same span ............. Clear as mud I daresay, but I kinda understood it.