Here is the deal on the eichmanns...if you TWIST them in any way while pushing on or off, you're done for. The cap screws into the barrel. The barrel has ONE screw that "holds" the cable in place. BUT, the connections from the cable to the cap (plug) are not held in place to avoid the twisting which WILL occur if you are not carefull when plugging in and out. The cap grips amazingly tight, so when you twist the opposite way, the barrel turns INDEPENDENTLY of the cap. You do this a little too much (depending on how you solder the ends) and short circuit city! Just be very careful and inspect the situation If you go that route. My advice to you would be to either SUPER GLUE the caps onto the barrels, OR heat shrink the cap and barrel together with adhesive lined heat shrink. Vampire plugs have a draw back also...they dont have a realy good way to clamp the cable to the plug. If you dont use adhesive lined shrink wrap, you're going to pull your cable out of the plug. Shrink wrap from a one inch below the plug (on the cable jacket) to almost the end of the plug itslef to keep this from happening. They also have 2 sizes available to fit regular or FAT cables. WBT are good plugs...get the copper ones. DHLabs have good plugs. Cardas makes good plugs. Audio Note makes good plugs (cute too). HGA (home grown audio) makes some REALLY CHEAP BUT EXCELLENT sounding plugs. Rhodium plated silver's are the ones to get. Dont buy those and complain about them. They are very good from a cost vs performance perspective.