200 I believe you can keep your SH2, but for 300 you need the SH3.
Weirdly I'm having speed issues after upgrading, on 200 i could max it out 24/7 at 220, however since upgrading to 300, i'm having issues hitting that majority of the time.
The area is fine for 200 as I had no issues before upgrading, so how come now i'm on 300 i'm not able to even hit the same speeds?...