yeah..this came up last year in a post.. a longer line with sort of an horizontal "S" will work.
Don't take this as an insult or anything but..to me that seems to be overlooking a bigger problem of not sealed somewhere.
I've been using Milodon's for decades and never had that problem as long as it was sealed up. Believe me, I've taken them apart and reassembled them many.. many times before getting it sealed so it would prime. But now I use better sealer and the oil pressure always comes up while the car is cranking over.
I did have have a problem one time where the car had sit 4 years and wouldn't prime.
But these are my views and don't amount to a hill of beans