I've uses the following "soft-touch" momentary switches from Small Bear in the past for replacing the stock switches on the Line 6 DL-4. They work and feel great but they're a little too tall for my liking - with the DL-4 they protrude to high from the chassis - there is no room to lower them inside the enclosure.
Are there any other manufacturers that make the same type of switch but shorter?
http://www.smallbearelec.com/Detail.bok?no=672