WANTED Rear hatch seal wanted.....

Talking of Schofields has anyone had issues with their window seals? Rear window fits like a glove, new front shield is awful though. Had it professionally fitted (thought against diy for front!) and the lip doesn't extend anywhere near as far over bodywork as the original. This has left what I would describe as a channel/ groove between end of rubber and face of Van which water can sit. Not good, particularly concerned over winter freeze/ expansion process.