The Answer: It Depends...
The mistake that most operators (and yes experts, too) make in explaining Flex-Serve and its labor dynamic is to view it as analogous to full-service... when it is not. It more closely resembles a combination of an exterior wash and an optional hands-on detailing operation.
The labor required to operate an exterior wash can be a single person; more by choice.
The labor required to operate a hands-on detailing operation can range from one or two; Flex recommends two, with expansion to another team of 2... at the prerogative of the operator. Ramping up or down is determined by several thing: demand, availability, and merit. Viewing labor the same way that a full-service operator does is wrong because full-service demands a minimum staff to operate and perform fixed tasks under variable conditions. Flex can process exterior washes with one person, and run an effective hands-on detailing option with another one or two.
The national percentage of labor in Flex-Serve operations ranges from 16% to 28%. Poorly run hybrid flex-serves require more labor mostly due to the owners' inability to discipline the process... or to devalue the products & services. Bottom-Line: It's not "what you make", but rather "what you keep" that determines the true NET.
Ron is right on target with his focus on sales. That means that high gross profit through quality service sales can shift cost-per-sale percentages into outstanding values that translate into great net profit.
Hence, a properly operated Flex can generate more net profit and retain a powerful competitive edge in most any marketplace because of the platform's tremendous adaptability that enables an operator to react and adjust very, very quickly... to weather changes, dramatic market fluctuation, and labor availability. Operational discipline is the essential requirement for optimized profits, and flexibility provides the ability to better manage the marketplace supply and demand.
