The main problem is that Basics or Faction Basics are now useless. Two GBs with basics will never hit each other when steering. I just did several tests with various GBs in Conn and literally the shields wont go down, the weapons are too slow to hit the other GB unless it's one of the few very large/slow heavies (although even Imperator can dodge Basics pretty good).
If you want to kill other GBs, you need to have Solaris to hit them, if not, then get Cerbs because they do way more DPS for only 90m/s slower than basics, You're still gona miss other GBs but you'll be able to put a hurt on Cruisers and maybe some snubs.
Right now for my the only two options I use is a Cerb/Pulse/Razor GB (For killing anything EXCEPT other GBs) and Solaris GBs (For killing other GBs and keeping snubs off my butt with the same efficiency as .86 GBs.)
Also, I would love to see a buff in GB missiles.... I like how they are now better than .86 but still think they need some love (just take a look at fighter missiles now :| )