ZZ3 and ZZ4 use cam # 10185071. This cam has less duration than earlier ZZ mtrs (208/221 @.050) vs 235/235. LSA are also different, 112 vs 114
Using this cam, as it's a roller, it's mild, and the idle has a very slight chop.
For a cruise night ride, you may want to look for something a little wilder.