Ships & Modules

The issue of skills is, while the subsystems for T3 cruisers are only 1x, those skills are specifically for that one ship. Following that line, I could see 2 or 3 new 1x skills in addition to a core 4x skill. Like with a T3, the ship could be flown at less than max in those skills, but has racial destroyer V as a pre-req.
Since the racial Strat Cruiser is a rank below the T2 cruisers, I think 4x for the racial Strat Destroyer skill is adequate. It would seem out of place to make it 5x, the same as the racial Strat Cruiser skill.
But it should either have a couple of it's own 1x subsystem skills, or require a couple V's in some other 2x skills that already exist.

Modes have some differences visually, like fins and sliders moving. Nothing huge. But if you're zoomed in, you can see it.

Mode switching can be done on the fly and has a 10 second cooldown. There are 3 buttons, one for each mode. While mode swapping is on cooldown, all 3 buttons go dark and have the new cooldown cycle visual. Mode switching on the fly in combat is seamless and effective. CCP has done a great job on this mechanic.

The bonuses aren't OP, because the ship doesn't get all of them at once. IMO, they're basically mini-AHACs. (mAHACs)?

The price of build materials looks to be about 30M based on what is on sisi right now. This ofc may vary depending on the market. No idea where the BPC/O will come from.

Also, and CCP hasn't mentioned this yet, but currently on sisi there is a new T3 component required in order to produce these. I'm assuming they will be available from the same NPCs as the other T3 component BPOs. Those require several hybrid polymers and salvaged materials to produce.