Haha, maybe another G2 user with a calibration/optics problem with the headset?
Indeed, I confirm I can read the TBM small green ITT numbers BUT it really is at the limit of the definition AND this is due to using SteamVR SS 124 which I find has nice aliasing properties with the Index panel resolution helping in this case with small lines clarity ( fine grained tuning pushed to some extremes 
)
I’d suggest you read this first to get started:
PSA: Reverb G2 small sweet spots, observations and solutions - #115 by CptLucky8
Then the discussion from the start to get the entire picture.
I would feel less alone if you’d join the club 