Your caution against attempting to pull a dozer by its blade is one I haven't heard till now, despite my frequent visits to the two most popular Caterpillar discussion forums ( ACMOC and IBdozing), and it is in fact the sort of thing I might have considered if I were standing in knee deep mud and watching my prized D4D getting mired. I know now never to attempt such a pull.
Once again I thank you for pre-empting what would have been a costly mistake.
