nope :( i mentioned that the kit i got includes an "injector" syringe adapter (in addition to the extraction one that 110% works) but it's a scam/trash/useless/more destructive. so i highly.do.not.reccommend. even testing it if u get that set. i gave up looking for similar alternatives for injecting that didn't seem like a headache :(and i even got banned from the frag heads group for literally asking for suggestions/recommendations LOL
but i got u gurlie - i've experienced many instant regrets during all my experimenting, so i have tips/workarounds for that exact situation 😎 TLDR; if u need to abort mission, there's a few fail-safes before u reach official "i fucked up" status
don't fill up the whole syringe when extracting the juice the first time u do it / do a few baby ones at a time instead so u decrease the chances of aborting mission when too late
if u do ever take out too much juice, u can get mini spray bottles to inject the extra juice into - i.e. something like these (there's diff sizes so no matter how little left over juice u have, it won't go to waste) / or u can use it to make a super mini rollerball too.
also for reference: the syringe is 10ml / you rollerball is 8ml. if u accidentally fill the whole thing up, mini the spray/rollerball bottles start as tiny as 1ml