Any tips for 4-layer boards?

[dhouston]

I've done them manually as you do and I've used a stencil. The thickness of the stencil controls the amount of paste applied. The stencil is preferred but for small parts and small quantities I still use manual methods. Here's a good source for stencils.

• http://www.quickstencil.com/prototype-stencil-kit.aspx

I've also seen less expensive mylar stencils but have not tried them.

• http://www.pololu.com/catalog/product/446