I didnt think I could use the tailstock as the part I am cutting is only 50mm long and the saddle is quite large and wont let the tailstock near enough really even with the barrel extended. tbh I've not tried it. Also not sure how centred the tailpost is, I've not tried to adjust it yet.

I'll have a look at making a steady, I have some 20mm aluminium plate that might do the job.