Does anyone have any experience in printing Adeptus Titanicus sized Armigers?

I recently started printing off some AT sized titans (Warhound, Reaver, Warbringer and Warlord) and had no issues with the reduced size and printing with an exposure time of 2.5 secs at 0.01 print height. With the Armigers being so tiny though, I've had the entire build plate fail at those same settings.

Would it be better to reduce or increase exposure time with such tiny models? Or would there be anything else I'd also need to consider?

Thanks in advance for any help.