Grinds feel solid on low setups—quick and shallow pinches, closer to the ledge, and so on. However, the stability of low trucks usually comes at the cost of kingpin clearance: Crooked grinds feel great, yet smiths and 50-50s suffer later with consistent kingpin hangups, especially on chunky, unwaxed ledges and curbs.
In my experience, low truck pop timing speeds up the process of action, requiring faster or earlier flick and front foot sliding. The board shape needs to be considered: The low truck pop response can be affected by kick steepness, which, in most cases, is positive. Factors like nose and tail length and distance of flat drastically affect truck performance, as well as wheel size.
360 flips become more challenging to pop on low setups, yet they spin more easily. Anything to do with popping higher feels like a struggle with timing, making it feel like I've run out of space on my board or that the deck won’t come up as high after popping.
I'm unsurprised when I see pros with low trucks on steep boards—the opposite works, too, with high trucks on mellow shapes.