A use for the Hounds: Cargo Pods with heavy engines ^_~ 3 FP, 10 Crew, ~180 Fleet/Combat Speed (w/o Augmented Engines), 75 Cargo Space. Great for keeping your fleet speed up while expanding your cargo space a bit.
I recently switched to a fast attack fleet. It's currently a Hyperion, 4x Tempests, and 3 Hounds. (I got tired of floating around in my Paragon fleet going 100 speed on the map and 33 during active fighting.)
With my current fleet, I have a fleet speed of 150, low crewing requirements (95 skeleton crew), low FP usage (40), yet still plenty of space for supplies and cargo (300-something cargo space). With 100 crew and 150 marines, I use only 1.5 supplies a day. I can catch up to/outrun most fleets (the exception being mainly lone/small Tempest- and Hound-only fleets). I have enough cargo space for about 3-5 fleet fights before I need to unload. The fights are more exciting/dynamic. And when in doubt, I can EASILY run the hell away ^_~
I currently do have some problems against heavy Destroyers and bigger ships (taking on anything with more than a single cruiser or a couple of heavy Destroyers will hurt), but it's MUCH easier and faster when hunting small-medium Pirate fleets. This is a nice fleet for those time when you need/want speed on the map.
NOTE: I just got my copy of the Gunrunners mod mostly working, so if I start a new game, the Helioses from that mod will help rectify the larger ship problem I currently have. ^_^