[garyt]

I have 4 over center catches on mine as well,
one thing I have noticed though is that once all is hot, there appears to be some "bonnet spread" not really sure how other to describe it but it has been enough to pop a catch while driving.... so whilst doing the mods I am going to put a couple of locating pins in the top rail and corresponding locating holes in the bonnet return lip to prevent this
Just to clarify I should have added I have a Gillham bonnet
Gary