[R-390] Z-213s slugs- caps

[wb3fau55 at neo.rr.com]

So I am gleaning  a good bit of info-thanks  guys.   Heres  what I did.  No peaking  action  at  Z213-2,  pulled the can measured 10pf  at terminals.  A lot more at the others.  I jumped in a 62 pf  cap  inside z213-2.  Got some  peaking.  
 As pointed out to me,  do I have the proper slugs?  2 have green paint on top.
One in question has none.  Tried slug  from another,  does not tune.  Are the 68 and 1.5 pf  caps  bad?    Russ.