One-wee-ones mostly happen at frigate level, but in general it's a pretty small part of solo, while actually it's mostly 1 vs many , but even frigates often utilize some tactics to separate gangs and gain a certain timeframe to do the job. This timeframe depends on how quickly the target can be brought down and how fast the reinforcements can land (either by warping in or by MWDing). There's literally no way to slow them down, so your only bet is killing things fast enough. ASB prevents your from doing that, more so for heavier ships cause DPS doesn't scale with EHP and tank when progressing from frigs to battleships.