That still doesn't explain how crossbones held his own against agent venom and it also doesn't explain away his fights with cap during the 90's and 2000's. Yeah, Crossbones was fast enough to surprise bullseye with his quickdraw.
Now that I think about it, who has Talon actually beaten?
Now these are better feats, you say he held his own against Agent Venom correct? The same Venom that beat Cap? He didn't have powers correct? This is actually a feat worth mentioning.
Cap didn't enter the enhanced range until Brubaker started righting them, he had a few feats here and there prior like that shield missile feat, any earlier than that and Crossbones held his own against a peak human Cap.
Talon (Cobb) I believe has beaten Dick Grayson, but that's saying a lot since Dick in the New 52 has stalemated Batman and held his own against Midnighter.
There was also a Talon who fought the Birds of Prey. Don't recall how that fight went down though.