901 and aligning cart?

[JoannaP]

I've read a lot about people needing to align the cart on a 510 but not with a 901. Do you need to do it with the 901 whistle tips or does it not matter? If so, which way does it go?

Thanks,
Joanna

 

[Scottbee]

I use 901 carts on my 510, and therefore it is less of a problem.

But, when doubt, align the "flat" on the "D" with the bridge of the atty.