ok listen i have this weird problem
i have a few rails in a single player words, with 1.6.2 version.
i have one block above the line to determine direction, then 6/7 powered rails (powered with a redstone torch) to give the cart the initial boost then normal rails
on line A, the setup works fine
on line B, built 5 blocks further, the cart starts moving but goes extremely slow, like there were no powered rails, and will eventually continue like this if it meets other powered rails
in line A tho the same setup works well
how 2 fix pls?