Actually, i figured it out. I used Dawn's hardpoint set from his Valdore's .gf file, and then used upgraded and altered Warbird specs. Some of firing arcs take a little work, but they're all okay now. By default she can run down a heavy cruiser and turn with it. Her weakness is in weapons coverage. I tend to keep the Romulan ships fast and maneuverable, but with limited weapons coverage focsed mainly forward and some aft.
I'll post the specs here if you want 'em. Bear in mind I gave the Romulans gravimetric torpedos on some of the newer ships. Those plasmas look hinky and the green torp is pretty cool.