Upon further experimentation in OP, I discovered that the game uses non-SFB range brackets for the TR beams. While a little odd in terms of TR beams, this works better for the Neutron Blasters. I replaced the TRL with a chart based on my records for the NBs, and reducing the power cost to 2 + 2.
I’ve also made some changes to some other items in the EXE file to play around with, including a max ship sped of 50, faster hi-speed drones, two-turn plasma Fs that move at 48, improved fighter weapons for Montel, among others. I look forward to sharing this and the OP15a shiplist with Belkov very soon.