What is this "elastic training" concept?
The basic idea is that when similar skills on a player are trained and are at similar levels, they will pop faster. The same goes for the opposite: the farther away, for example, ID is from REB on a big, the harder it will be for IS to pop, compared to if REB were trained. It is better when related skills are trained in a rotation, instead of doing that one skill, which would increase the penalty of the elastic effect. One benefit of the elastic effect is that if a skill that is related to another is way behind, when that skill is trained, it will pop a bit faster than normal until it gets close enough to the other related skills, from my understanding.
It sounds like it is better to train one on one for 6 weeks then move onto inside defense for 6 weeks then back to one on one for another 6 weeks than train one on one for 18 weeks. Is that the correct interpretation?
I guess, but in that time span, it would be even better to train other skills, unless HA/DR is that low.