Personally, i think bring back refueling could help make f1 better, but it's not a silver bullet by itself. The FIA would need to work closely with the tire supplier to ensure that multiple strategies generate roughly the same total race time.
For example I think the following restrictions could potentially make multiple strategies equally viable.
- no pre-allocation of tires. The supplier shows up with more than enough of each type, and the teams are only limited by how many sets they are allowed to use.
- You start the race with whatever set of tires you qualified on regardless of starting position.
- You start the race with whatever is left in your tank after qualifying. However their is a minimum and a maximum fuel load that you must abide by. Additionally fuel load can't be altered once qualifying begins.
- A minimum and a maximum refueling volume per stop.
- An adjustable refueling rate (how fast the pumps work)
- An adjustable pit lane speed
- An adjustable pit lane length (the distance between the lines where the pit lane speed must be adhered to)
#3 through #7 would be adjusted per race weekend with some amount of advanced notice for the teams. The goal would be to work with the tire supplier to ensure that multiple strategies are equally fast. Just to be clear when I say multiple I mean like 4 or 5.