i have a 24" echo with a tarty mod stem and a few spacers, and it feels insane, so much control, but my mate has a 26" because simple, i tried that out with a standard 26" stem (which a normally low) and i didnt like it, but a few weeks later he bought the same stem as mine for it, and i couldnt really tell the difference and they were are similar sort of length, but i prefer my 24" as i feel im not big enough for a 26" yet. but its personal preference what you like. but i think the stem makes all the difference!