That's the last working BP I had on SMA next to my current version. All the guns have been reworked and upgraded, main guns are about 35% bigger, have a well underneath and had their positions adjusted, side guns were upgraded by over 100%, added a heavy AMS on the side and increased field of fire of the small AMS by raising their barrel pivot. Fattened and rounded the hull in the middle and reworked the booster thrusters, it's had at least two(?) system refits and about a dozen different WMG refits. Lots of greebling adjustments and fine tuning... so yeah it's improved somewhat since last it flew on SMA.