Bump fighter + DG Trac II...doesn't fit?

[DE_Dude]

Wanting to try a Trac II style razor, I bought a Bump Fighter and started to keep my eyes open for a twin blade cartridge that would fit. I found the Dollar General Korean Trac II style blades, everything looked good, until about 5 minutes ago when I tried to put it on...

It slides right off! Literally, just tilting the razor makes the cartridge slide off so it's pretty much unusable. I already bought 2 packs, and I'd hate to buy another Trac II style cart and have the same problem. Am I missing something here?

 

[Robxcarlson]

It's the razor not the carts. You need to bend the two sides of the head out a little. I've got several vintage trac II razors and the DG carts fit nice and tight.

 

[Wil Dorenbos]

It's the razor not the carts. You need to bend the two sides of the head out a little. I've got several vintage trac II razors and the DG carts fit nice and tight.

+1 I had the same: some brands fit, some don't.