I am just fitting new MK3 Vernier into the MK3 front mount There is quite a discrepancy in the length of the new vernier vs the mount. There is a gap aprox 20 mm between the adjusters and the actual mount . This gap cannot be closed up . It would fit perfectly into the MK2 and I have done several of these with no problem however, the MK3 mount is 105 mm vs 117 for the MK2. Is there some kind of spacer that I am missing as even at maximum tightness there is still quite a gap. Any ideas on this would be appreciated Thx Drummer 99