Raven should (and will be) slowed a touch.
Talon should (and might be) slowed less than a touch.
MKII House fighters and Border worlds fighters are much easier to kil due to the frame. I.e., blow their "wings" off and they lose weapons. THe Raven, you have to actually destroy the weapons. To do so, you need about 15 Cannonballs.... It takes 10+ to kill a Slipstream, 2 to kill most other fighters.
Slipstream I never liked, but that's just because it has almost no hit box. I probably would be good in one myself, but I like the Wyrm better.
Perhaps an increase of the hull of ships with frames by 100-200 points to balance out the fact that more ships have no frames, and, therefore, nothing to blow off, therefore, harder to kill.