Like all other cues , personal preference and testing is the real key.You have to figure the details that work for you.
The only thing I can add is that IMO , on a jump cue , balance seems to have large infuence. They all have very hard tips (that can be changed tho) , relatively light weight and stiffer shafts. But I've notice that some have more weight up front and some more towards the handle.
For me , a little forward balance works better. I don't like really light front ends like on a Pred air. It always felt like it took more effort for the same results.Of course tons of people love them tho. Currently I'm using a Lucasi , like a L2000 or something , solid wood shaft. It's about perfect for me but it's the formula that I know works for me regardless of the name on the handle.
Just my thoughts.