With the HW-19, more important than the feet on the wooden base are whatever is being used to isolate the floating sub-chassis from that base. Common replacements for the stock spring suspension are Herbies Tall Firm Tenderfeet and SIMS Navcom Silencers (no longer in production). And people are just now starting to install the IsoAcoustics GAIA III as suspension footers, and loving the results. $199 for a set of 4 ($189 on Amazon). They even come with a set of 1/4-20 threaded studs, the same size as the stock springs! The GAIA is adjustable, providing a means of leveling the sub-chassis.
A lot of people have installed the 1.5" wide Mod Squad Tiptoes in place of the stock rubber feet on the wooden base of the HW-19, a good idea. But the Tiptoes extend past the edges of the bottom of the base, looking like Hell aesthetically. And, Tiptoes are machined out of aluminum, a very soft metal. A better choice is the Dayton Audio DSS2 foot, which is the same 5/8" height as the stock rubber foot, machined out of brass (somewhat soft, but people seem to like the sound of it), and offered in chrome, black chrome, and semi-gloss black (which matches perfectly the piano black version of the VPI base). Installed on the HW-19, a set of Dayton Audio feet looks really sharp. The foot is also available in a 1-1/4" tall version, model no. DSS3. Parts Express sells the DSS2 for $8.95 for a set of 4, $11.90 for the set of DSS3.