I have a tower w/ 9 x P109 and 1 x P109 (acting as a writer)
Wytron 399 Controller
Got it last year.
Always write at 4X
Full burn used to take no more than 16min
Now, its averaging 60+ min.
I am going to start by replacing the writer (with a new P111) - but I really don't think it's that..
Thanks for any posts.