For HD leaning angle and if you do lean stay with 402 or Pirelli Night Dragons E3s are good on tar snake but keep in mind those are more suitable for Goldwing's lean angle and don't handle very good in extreme lean angle at a very very slow speed.You can not do those cop training turning skills with E3s.
Sorry, I've gotta call Bu!!****. My buddy has them on his 06 RG and we have set up the exact courses from the book and he scrapes his boards right along with me. Going through the course playing follow the leader is a blast! On my next change I'm going to the E3's.