Talk Morgan Forums Morgan Sports Cars Maintenance & Servicing How often to grease upper nipples?

Hello

I just started the greasing adventure on my Plus 4 (2019). I grease the lower nipples every 1000 miles.

Question 1: How often should I grease the upper nipples?
Question 2: How do I know if there went enough grease into the upper nipples? Will fresh grease spread out somewhere as indicator?

Thanks for suggestions.
Regards from Switzerland. Werner.