Since I just got an Enforcer XIV I can report its stats: I've got 5 more OP, 100 more armor (up to 1390 with heavy armor and armored weapon mounts), 21 more flux (with T4 and max vents, no flux distributor hullmod, but if I did it gives me 64 instead of 60 and brings the total up to 525), and at 16 capacitors its giving me 8400 capacity instead of 8000, and 63 speed (with an officer with helmsmanship) instead of 69 speed (I'm getting a 5% speed boost, 3 total, from 85% CR).
So for this build, its 5 more OP free and 4 OP in flux stats for a total of 9, plus 100 armor, at the cost of 7% maneuverability and 6 total speed.