BLOOMINGTON, Minn. — Too much of a good thing is, well, not a good thing.

Currently there are 21 races on the Formula One calendar and team personnel are stretched to their absolute limit and spending too much time away from their homes and families.

Now, Formula One’s commercial owner, Liberty Media, has gone on record as saying that the goal is to have 25 races in a season.

Right now, it’s not too bad for some of the European rounds — there are 10 — because some of the crew members can fly out early Thursday morning and return home Sunday night or Monday morning.

However, six of those races are paired in three groups of back-to-back events. In these cases, many of the crew members travel straight from one country to another, so that means 11 days away from home.

For the “flyaways,” which are the 11 races outside of Europe, the crews usually leave on Monday and return the following Monday. But there are two back-to-backs on the schedule, which means about 15 days away for each of those.

The crew members, of course, fly in cramped economy class. It’s only senior team personnel and the drivers who travel in business or first class. And drivers such as Lewis Hamilton have private jets.

Vietnam joins the calendar next year and Formula One’s CEO Chase Carey is keen to add races in the U.S. and Africa in the future.

A big chunk of F-1’s commercial income comes from promoters paying the fees — up to $50 million annually — to host a grand prix. More races equal more money for both the teams and Liberty. But what about the strain on the crew members and their families?

“I don’t care about the families,” said Toro Rosso team principal Franz Tost. “We can have 26 races. If we get the money for all the races, that’s important. Then I don’t have a problem.”

However, more races come at a human cost because it means more time away from home and families for traveling team personnel. The big teams can afford to hire extra people to rotate the staff that goes to races, but the smaller teams can’t.

“I care about the families,” Haas team principal Guenther Steiner said. “Because then the people working are happy.”

There is also a point of saturation and too much of a good thing. Will F-1 continue to be special if there are so many races?

“Do you limit the races to 18 and charge more for them because there is more demand?” asked Racing Point’s team principal Otmar Szafnauer. “But then you have to know how much more demand and how much more you can charge if 18 is more exclusive than 25. With TV as well, you might get a bit more money if you can show it 25 times a year than 18. I remember when we did 16 races — it was a bit more exclusive then.”

Liberty’s plan is to initially compress the weekend by moving some of the media commitments plus the car tech inspection from Thursday to Friday. In the longer term, there could be two-day race weekends.

The theory is that by freeing up an extra day per weekend — say over 25 races — it creates 25 days at home for team staff. But it doesn’t really work out that way for races outside of Europe and any back-to-back pairings.

From the promoters’ point of view, two-day weekends may work at venues like Bahrain and Azerbaijan, where there is minimal spectator turnout. But many tracks depend on and need the extra income that Friday on-track action provides for them.

The fan turnout on a Friday at a venue like Montreal’s Circuit Gilles Villeneuve is massive.

Tracks like Montreal, the Hungaroring and Spa also draw a large number of fans for a pit walk on Thursday. And those fans are paying customers at the concession and souvenir stands, as well.

In short, a shorter race weekend will mean the promoters will lose money, while at the same time not really reducing the human cost to the teams.

There can be too much of good thing.