How to config 2 Built-in Monitor in pool and use script on top of it?

we found the solution on test server about add another one monitor for web-tier and set Availability requirement to "at lest 2"

This time it will be monitor 1 >> check tcp port of web-service

monitor 2 >> check contenct of web-service

monitor 3 >> check tcp port of app-server

If we set "at least 2" , we can make sure that Availability of pool is Online when Web-service is up. and offline when web-service is down.

App-server is cluster so we ignore it even though it's down.

Is this practical solution? Please recommend us Thank you very much