I'm looking to replace the blend control on a passive P/J bass to a simple 3-way pickup selector. The M/N 500k pot in there now doesn't blend much and is essentially a pickup selector. It is, however, an improvement over the stock blend control that dropped the volume significantly when centered. Are there any specific specs I should look for in the switch, or does any one have a suggestion for one they are happy with? If it makes a difference, the bass Is passive, has a P/J setup with a single volume control, blend control, and each pickup has its own tone control with a push/pull for series/parallel. Thanks in advance.