I've played around with brobot lists for a while now and the permutations are endless, I've settled on one of two lists, but would be grateful for some constructive criticism. It's for my first tournament in a couple of weeks time so any and all advice is appreciated

List 1:

Ig88b, title, vi, fcs, auto thrusters, inertial dampeners, mango, ion cannon

ig88d, title, expert handling, adv. sensors, auto thrusters, inertial dampeners, mango, ion cannon

List 2:

Ig88c&d title, determination, auto thrusters, hot shot blaster, mango cannon and either accuracy corrector or sensor jammer

List 1: I don't see the reason to run both Mangler and Ion cannon. I like the combo of expert handling/AS/IG88D for his vast unpredictability, but this list will suffer to deal sufficient damage. Without PTL you are also avoiding the bonus of the added action economy which I like to run with AS, and without IG88C's ability you are losing even more "free" tokens.

List 2: I don't like determination on these ships. They can be very evasive ships, especially if the dice lords take care of you, but honestly by the time your potentially taking crits, you should be at a point in the game where saving that one damage won't turn the game around. These ships live forever, or go down in a ball of fire, quickly, and I feel determination is a wasted EPT. Hot shot blaster is a nice attractive ability for IG's, but with all the S-loop and K-turns you will be doing, I find in inefficient. AC and sensor jammer, I wouldn't ever consider, no need. Keeping as true as I would like to your builds;

List 1: IG88B - VI, FCS, HLC, Inertial dampeners, Autothrusters, Title

IG88D - Expert handling, Mangler, AS, Inertial dampeners, Autothrusters, Proximity mines, Title

You can use prox mines (with or w/o AS) as a control aspect instead of your ion cannons, IG88D, looks pretty scary here.

Scrap List 2, but I will give you my personal favorite build;

IG88B/C - VI, FCS, HLC, Inertial dampeners, Autothrusters, Title

With this build, your optimal range is 3, your damage will be extremely high with B's ability and FCS/HLC and C gives you free action economy, which is always good. You have a 2 point bid, which will land you choice of initiative most games. Good luck!