From all the posts I have read, I have always understood there are only two adjustments that can be made to the roof top (well, three if one considers the eccentric bolt that adjusts the tension bars that press the back of the hood on to the storage cover)
-) At the B post
-) At the hood latches
I have also seen how some owners have either used silkaflex or a rubber seal to try and get the top to seal against the header rail on top of the windscreen
Well, while battling with mine, I accidentally discovered there is another adjustment, which moves the header seal further forward (or back, as the case may be), which helps it seat firmly against the header rail, and also tightens the top a bit.
There are two bolts on each side at the front of the hood, as shown in pic below. The holes for these are elongated.
Loosen these, and one can move the top backwards and forwards... provided it is not under tension, in other words, fold the top into the storage compartment before loosening the bolts


