A few questions. So I've been reading guides and watching the Manley video on gravity assists. But most of these are two years old and I'm not sure if things have changed or not. I've used gravity braking and small assists often enough that I'm comfortable with them and I understand the concept. I am currently trying to send stuff to Jool via an Eve gravity assist. I've seen that you can save somewhere around 1000k+ÃŽâ€v if done correctly and even sloppily. This doesn't make sense to me because the ÃŽâ€v to get to Eve is around 1080, while Kerbin->Jool is ~1900, according to the Olex calculator. I actually have a near perfect transfer window lined up currently, I'll arrive at Eve within 5 days of Eve->Jool. But even still, regardless of how close I get to the planet, I can only manage to get near Duna's orbit without a retroburn. So I'm now assuming that planning transfers doesn't really matter because you would need several encounters to get to Jool? As it stands now, I can get to Jool with 1080ÃŽâ€v ->Eve + ~1200ÃŽâ€v powered assist near Eve periapsis. More than 1900ÃŽâ€v, so why bother? Otherwise I assume my journey will look more like Kerbin ->Eve, then back to Kerbin, then back to....Kerbin again? Gaining slightly more energy each time? Until I finally swing up to intersect Jool's orbit with small correctional burns?