The tip is a big factor also, not just the length or weight of the cue. I replaced the tip on my break/jump cue and it's jumping noticeably better now. Using a White Diamond BTW on it.
Starter cues, beginner cues, I think are all just fake news. Might as well go with what is considered the best if one can afford it not spend money twice on it. If a jump cue is good, it will be good for any skill level, because the whole point of them is to make skill less relevant to the jump shot. I hate when people say "I'm not good enough to have a nice cue yet", if the goal is to get good enough and get a nice cue, why waste extra money buying something crappy first if you are going to change it.
A longer jump cue is most often used for accuracy on longer jumps, for a shorter distance to jump you would need a shorter lighter jump cue but that makes the cueball a bit more wild. I like the PureX jump/break cue, has two different length selections for the jump part, it's a 4 piece cue. Does everything as good as anything else I tried.