I want to introduce some weight to my training, not in my gut but in a daysack or similar. I've been training for the last 6 months and hope to rejoin later this year. I've been running a few 3mile runs and a couple at 10 mile each week. i've got bergen from before but it's a bit overkill for 15kg and it would look like i have just returned from patroling in NI if i was to go running with it on my usual urban route and i might look abit out of place. Although i have gota 30L daysack somewhere, which might be better suited. Or should i really try to get use to the begen again, being alot bigger size wise. Also, what is best to carry as a 'load' without it bobbing up and down on my back too much, i was always told to put the weight towards the top??