in what sense are they descent twenty-se7ven, i have one, car is fine, 04a04, three wires, but has minor stepping problem in one direction, like said in another post 5&6 + 6&7 seem to happen at once, like it will stall making the 5 step but then as you continue the the 6 step happens with two quick movemnts almost making them seem as one. this also happens on the 6 & 7 steps. but for what the have come form miles ahead.