Running the precheck will be sufficient on your side. However, if you have access to the proprietary DRC deck, it would be advisable to run that as well.
On our side, the proprietary DRC deck will be run on the whole reticle. If relevant DRC violations are identified in your slot that cannot simply be waived, we will get back to you to try and find a solution.
It would be really helpful if you could let me know which rules were missing in the KLayout DRC deck.