Welcome,
I don't know about special break-in oil, but don't switch to synth 'till after the 600miles... maybe even 1,000... During break-in try to vary throttle and accel and use engine decel... Steady hwy cruise doesn't break in rings well... and, avoid full throttle for a while...
No additives needed..
Amsoil synth is great oil, but pricey.. Use it if you like. 20w-50 is good for summer, but either is fine...
For your type riding, I'd start checking for camchain wear at 15k, (some have gone before that, but probably short errand bikes or bar hoppers)... I put in a Versy modded (see tech section) cam-chain adjuster at 24k...
Now it can't fall out,.. I can relax and enjoy. The chain will give me a rattle when it gets too loose, but won't come loose...
Our bike is also famous for a harmless, speedo rattle (easy fix, see tech section again).. and belt squeak when wet.
... and the vacuum petcock tends to go at some point (we swap to a manual Raptor)...
Other than that,... it's a great little bulletproof torque monster...
Peace...
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