So I've been killa hunting for a week now and during this time i maxed out endurance. I love minmaxing abilities in this game and so I've been looking for ways to start leveling strength during these runs instead! This is what I came up with to keep myself overweight at the beginning of the raid. Two docs cases full of SAS drives are 13.5 kilos and the crowbar is 1.9 kilos. That bundled with my usual loadout for killa farming puts me over the threshold into overweight. Let me know if you guys have your own tips and tricks! I know shoving a tank battery in my case would put me overweight easy, but people without kappa can't do that and this saves up a lot of space in your secure container.
Source: https://www.reddit.com/r/EscapefromTarkov/comments/jlv0th/overweight_for_cheap/