I wonder what you guys think about this spot from a 550€ live MTT with 1800 starting players and now 205 left and 180 paid.

The super aggressive big stack who opens allmost every hand when first in min raises from CO and I have A8o on D.
both the blinds are pretty tight players so I guess this guy is gonna open with about 70% of hands here, maybe even any 2 cause of players being so tight close to bubble.

I have about 15 big blinds and re shoves whit my A8o. I am certain it is chip EV+ but is it maybe to light concerning the bubble? the avg stack was very low so I could for sure have waited through the bubble even though that of course would crippled me down to 10bb or so.

without having the maths to back i up i find this spot being close, I guess A8 should be bottom of range for this shove, but I am not sure.

Tell me what you think.