[MagellanR14]

Hey guys,
     I love my Sony XBA-4's and have been using them for at least 6 months now. The soundstage suits my needs perfectly I just wish they would isolate a little but more (albeit they isolate exceptionally) and say in my ear better during workouts. As I was looking for a cheap solution, I came across the Decibullz Custom Earphone Mold: http://www.decibullz.com/shop/custom-earphone-molds/custom-earphone-molds/.
     Does anybody 1) know how those molds preform fit and isolation wise of 2) know of similar products that may be better or worth looking into?
Thanks a lot guys,

 

[squallkiercosa]

I did something similar with custom radian earplugs about 2 years ago: the results were a bit messy but got a nice seal. Needless to say, the decibullz seems to be designed with IEMs in mind so the results should be better.
http://www.amazon.com/Radians-Custom-Molded-Earplugs-Blue/dp/B003A28OW6
 
I own the xba-3 and isolation using hybrid tips is good. Now I use Monster foam tips and I'm quite happy with them too. Comply tips are also a good choice. Usually people look for this products when comfort is an issue, not looking for isolation.