Does Heartland use slide seal pulls that when the slide extends, the tab makes sure the slide seal extends to ensure no water entrance. If no slide seal tabs are installed and water was to enter the camper would this be considered a manufacturer defect? I feel that a simple oversight or neglect from an engineering standpoint should qualify for a goodwill assistance with a camper 9 mo out of warranty that has suffered delamination of a side wall related to water entry from this issue. The dealer technician in Knoxville, TN has deemed the entry to be such. What avenues do I have for assistance from Heartland for goodwill fix on my particular unit? Thank you in advance for your assistance.