Trouble Chaining Entities

[mysteryman141]

I'm trying to chain together two "power_cable_dirty_noplug.ent" entities because the default one is too short but they bug out and flail around with some type of phantom forces. I tried to disable collision in each one and that helped a little but but didn't solve my problems entirely. The second cable flails wildly and stretches and I can't think of a map where they used two cables together off hand; maybe it's not possible? Thanks for any help!

EDIT: I didn't solve the problem but I found a workaround by chanting multiple cables and making them static physics and disabling interaction.