If your Athenas have tweeters offset than in reality you do not need to toe in or maybe just a little bit of toe in. I tried various positions for my Poseidon speakers (v.2) they are pretty big speakers ultimately I settled for straight position

no toe in gives me the best imaging
Separate 5.1 channel system with Vizio 65 " P65-F1 Quantum Dot Display with a "wonderful sounding" Wyred4Sound MC7150 amplifier directly inputted from Oppo 205 and Kef LS 50 speakers and Hsu VTR MK-15 subwoofer
2 channel system : Oppo 205 for transport, connected via and Coaxial/ XLR to PS audio DirectStream DAC , Don Sach Pre amp, Quicksilver Mono 60 watts tube amps. Daedalus Poseidon Speakers (2018) as a back up have Odyssey Kismet Amplifier

Asghar