In any case don't abandon the Sapphire Plus for a Sapphire plus it's almost the same machine and if the one I have just as bad to get going. Mine now works almost ! It gives very good prints with lots of materials I could not use on my earlier machine but it is not really reliable it's PID based temperature control is clearly faulty with temperatures all over the place and produces err7 err5 several times a week.

I use the machine in a semi commercial development environment with it running almost all day every day the unreliability means it has to be monitored all the time in case it stops with an error - all in all a pin in the neck but lovely when it works.