2 / 3 hole engine mount

Hi, after dropping my engine out yesterday to have some welding done on the frame I noticed that the kickstart side mount rubber had started to come away from the outer metal sleeve, its only been in for a couple of hundred miles!, this was one of a pair where the other mount had done the same (even before i'd fitted the engine after a rebuild) I put it down to a one off bad manufacture which in the first instance I contacted the dealer who supplied them & sent photos & they replaced no problem, I contacted the dealer again yesterday regarding this one & sent photos again, & I was asked if I had fitted it correctly, which I had as per stickys manual, the guy I spoke to was helpful & explained he had to gather some information before putting to his boss, so I'm awaiting a response on this today hopefully, so getting to my question & I hope it doesn't sound to daft but could you fit a 2 hole mount on the kickstart side & have a 3 hole on the other? I have a spare unused 2 hole mount & it just got me thinking! thanks for any info to my long winded post ! 
