I am a Soverel 28 owner. There is a terrific batch of information for the Soverel 30 --the EARLY version---available at Hoofer Sailing - Spray: Care and Feeding of Spray
Definitely worth a look. There is a Yahoo Group for Soverel information, and it is slowly growing and adding information on Soverel's throughout the country.
Is your 36 the Mark I (Bill Soverel design) or the later designs (Mark Soverel).
The early designs appear quite traditional--the later designs look like rocket ships and are ultra lite.