look here - for few simple tips - http://www.dhtrob.com/projecten/elna1_en.shtmlboyz are nutz , but not too much I told ya - not oil but some waxy thing - which will give you much better damping & mechanical properties ;easy to melt , and falls in place just right ...if you are going to use some Al tubes (cylinders ) - put some dielectric sheet between cap and walls of tube .... but I know that you already know that ......