Guys this thread is from 10 mth ago ish, There was only me on the site that binned it but a few others have marks on the sump.
The thread has reamerged becouse its happend to someone else now, this aint an isolated problem around 10 per year are affected (ALL in the north) now were either hard ba$tards or the roads round here are crap
The outcome is the bikes get repaired foc after an inspection, The bottomline is you have to admit theres not a problem with the bikes and your bike will be fixed
The mod is done at Riverside where they cut the bottom of the plugs off and modify with flat plate, I spoke to them last year and they said a race team (monstermob?) had they same thing happen to the bikes running them in.
Think DM had 3 bikes back last year, Leeds sent out letters to all there owners asking them to check there sumps