I know alot of you have probably read it already, but, I just got done reading the book written by Scott Haugen, talking about different egg cures and even sardine wrap cures, its a great book and has some awesome recipes. Its definitely a good time of year to learn this if you dont really know how to make awesome bait, with springers starting to come its perfect timing to glance at it.
If you like to use kwickfish for springers the method shown, will work great. I checked it out from the library, but Im sure you can buy it as well. Probably for sale in STS somewhere.