To fix the displacement issue, I invested in a 30kg weight vest. It felt pretty comfortable having the weights distributed evenly as the vest snug nicely on my body. It felt even better than having the same load in a backpack. However...... There's no way I can wear that and take public transport without getting flagged. It looks like a military vest, albeit pretty suspicious. Luckily for me, this vest fits in my bag so the plan is to just carry it in the bag and put it on when I'm about to start my trek. That should solve the problem of being mistaken for some terrorist.