Duster door strikers

Well on closer inspection..... it looks like my latches might be the problem. There is a spring-loaded white plastic wedge in the bottom of the latch. It looks like it is supposed to catch the head of the striker and then retract under spring tension. On my latches, this plastic wedge has a groove worn where the striker head rides. I bet that my new strikers are slightly different than the original and they don't ride in the groove. This would put them on a bind and make the doors very hard to open..... and that's my problem !
Thanks for listening
Alan