JBuds J4, Aluminum Bumper Compatibility

[beluba]

Is anyone here using the JBuds J4 Rugged Metal In-Ear Earbuds with an aluminum bumper? I'd like to pick up a bumper (vapor pro, deff cleave, e13ctron) for my 4S but I can't tell if the cutouts are large enough from the pictures. I did a search but couldn't find anything. Thanks for the help!

 

[Atmosphere]

i had the J2's, and granted they're a lesser model, but i absolutely hated them because the silicone ear pieces were useless. they were paper thin, so they don't stay snug and don't isolate outside noise very well at all.