I changed it at like 1200 miles and then every 3k miles.
I am at 9.3k now and I am still using dyno oil. I am going synthetic at 10k or 13k miles.
eVerybody is saying that Subi engines take a while to break in so I am taking my time.
I did the same with my 02 WRX and it never never had a problem or burned any oil.