If you want to you can also use Honda part number 16950-mal-603. It works just like the stock one but eliminates the vacuum shut off.
I feel this is a good alternative, but you need to train yourself to shut the gas off at EVERY stop.
Not doing so invites hydro lock.
Then there the theory there's enough gas in the lines to cause hydro lock, but with the petcock off, vacuum might prevent the lines from draining.
I did have a hydro lock situation while having lunch one day, so short time is all that's needed.