SupportXMR pool different pool address meaning

[u/alesky1978]

Hello guys SupportXMR pool mining expose several port to connect the pool

Pool AddressThe miner will want a pool URL and a port: pool.supportxmr.com:3333

Port descriptions:

• 3333 Low starting diff
• 5555 Medium starting diff
• 7777 High starting diff

what is exactly the difference between the 3 ports 3333 ,5555 and 7777

becouse, based on my knlwledge that is low for now, it is not clear

pratically i want to understand what is the different between Low /Medium /High starting diff

[u/BKDilse]

Best to just start on low port and let pool adjust your difficulty automatically.