The only scenario i see a retro losing to an SOS is the same as a gnasher losing to an SOS and thats overconfidence in how much damage they have done and simply not backing up. BOTH of which are on the player and not the gun. The difference between the two is the SOS isn't going into slo mo from gnasher fire and depending on distance that gansher fire has fall off.
I agree on your final part, but thats only from people who only use one gun the gnash they are one tracked with one technique, those that never realized how effective rifles were pre update gears one, and how useful they were after especially once stopping power in two hit. I hate that the gun forces me to use it, not that i couldn't beat retro users with my other 4 weapons, but that i will do far better and have an easier time using it myself.
It spreads like a plague in KOTH, one person starts with it and by the end 9 people are using it and one gnasher user rage quits

You don't see this with any other gun short of SOS pre nerf. Now some of that especially in regards to the SOS was stupidity on the player, but looking at the pro's cons' and damage numbers tell me a drawback to the retro. Just one. I guess it can't get a quinn on one shot like the boomshot or digger but its also not a pickup in most modes either.
I think its close to medium range is fine and should fall off at longer ranges then the gnasher, but it should have fall off. Until it does again i will continue to use it and its nice not having to worry about even getting an active to get full use of the gun. The fact that using a saw has serious risk yet the incomplete stab has no risk and all the reward and now that i am following it with a melee has a 99% success rate is all out of whack. That has nothing to do with countering anything, or being balanced with other weapons... it has to do with gamers now a days wanting easy kill, easy kills fast, and not having to put any thought or strategy behind it. I can exploit with the best of em, difference is i find it cheap and not all that fun to do so.
EDIT: i assume the retro users you beat with a lancer don't know how to feather and you have an active lancer at the time right

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