New to darts! I have a few beginner questions if anyone has the time.

Sorry for what’s possibly a silly question, I’m very new to darts.

I purchased a few sets on Amazon “Winmau” and Red Dragon Razor Edge” both in 22g.

I’m looking to purchase the Winmau Fusion flight system but am unsure if there’s a standard length for 50.80mm barrels. My options are, Winmau short 22mm, intermediate 28mm or medium 34mm.

Additionally, does 22g sound like a decent weight to start at? I know trying different weights would be ideal but I’m not trying to purchase multiple sets at this time.

Any other advice, tips or common questions is welcomed. I appreciate your time in advance.