There are four basic options, each with it's own pros and cons.
1. The jets can be masked off. The benefit is there is no concern about damaging the jets. If the jets are the wrong color or dingy this might not be the best option.
2. Purchase new jets. This is a great option if you can find them and the jets can be removed. The con is the time spent to find the jets and the cost. On source that has help our clients is https://uspartscenter.com.
3. Remove jets and spray them separate. There is more uniform coverage when this is done. The negative part is the jets might not pivot. There is also a greater risk of coating failure where the water come out because of the pressure. We have not see a failure at the jet where the water shoots out but we see it as a potential failure spot.
4. Leave the jets in place. This option is best if the jets can not be removed and they will not match your newly refinished tub. The negative here is that the jets will no longer be able to be rotated and again there is a higher risk of potential failure.