I'd like to focus on ollieing higher this year, since it's probably my last year to be able to develop my ollie before I get too old. I just want to ollie over things the height of my knee, no big goals here.
I usually ride boards that have or are close to 8x31.5x14 dimensions, since that fits my average height, shoe size, and weight.
So, I'm thinking of the following setup:
1) A board with roughly the same width and length, but a longer wheelbase, maybe 14.5 inches, but with mellow kicks and concave so I can avoid ghost pop
2) I'd pair this longer-wheelbase board with a high truck, like Thunder Hollow his, and possibly riser pads
3) Smaller wheels, because bigger wheels can contribute to ghost pop
This is what I'm thinking so far, if anyone has any ideas on what to suggest or improve, I'd be happy to hear them.
Also, there's a lot of talk about how light boards and trucks are gimmicks and you need some leverage to pop, but I'm kind of feeling like the lightest deck and trucks are the way to go. Can anyone convince me that I'm wrong?
There is a thing called physics.
To make it short: You want a force (your pop) to make an object (you) go further in a direction (higher), with a lever (your set up).
Thoughts (in non particular order):
The only variable in above formula is the set up. (Unless you want to work out that is.

)
The heavier something is- the further it goes. Think about throwing a table tennis ball and a golf ball.
But honestly you can forget about that, because you have to throw the board + yourself around, so the weight of your set up makes no big difference.
You want to go up. So the lever should channel the force in a steep curve.
The way you are about to go, to avoid ghost pop, will make it flatter. That means even if you pop harder you wouldn't go higher.
Conclusion:
The easiest way to get your ollies higher is simply a steeper set up.*
Short/ Steep tail, risers, big wheels, you name it.
I'm afraid you have to adjust your technique to that, in regards of "ghostpop".
Or gain more power. Or loose some weight.
...On the other hand skateboarding is not rocket science. Psychologie + spirit play a role, too.
So, ride what you like and what feels good.
Have fun experimanting!
Hope this makes sense /Sorry for the gibberish.
*I remember some 1990ish Decks that were just ridiculously steep (Deathbox "Rocker", G&S "Heintzman"...)
Barely useable for anything else, but they made you ollie two more stacked boards. And that was a thing back then. ("How high can you ollie?")
Edited for punctation.