Pan gasket for 360. What one works best?

Here's what I do:

I buy a Magnum one piece gasket and a standard 4 piece 360 gasket.

After a test fit, I use the rubber ends from the 360 gasket for the ends (timing cover and rear main cap). CAREFULLY cut the magnum one piece ends off (as the long rails are the same on the magnum and LA 360) then seal the LA ends to the magnum rails with a bit of black silicon.

Costs a little more, but my pan gasket doesn't leak.