There seems to be much said about regulating grand pianos, but verticals need it too - they sound and play better, and also help the piano last longer. Here's a pdf from the Piano Owner's Repair Guide that will help you better understand what it is all about.
Notes From the Piano Bench
Questions and Answers and updated factoids concerning pianos in the 21st Century.
Taking care of people and their pianos since 1986
Topeka - Leavenworth -Lawrence - Ottawa - Kansas City
Save time and money - schedule Online Here!