I notice so many posts that ask the same questions over and over. Another lister told me that a good way to find answers to questions is to go to "GOOGLE" and do an advanced search on the groups tab. There, one can ask a question or use key words and phrases to do a search of a newsgroup. So if you have a question about TIG vs MIG just type in that search string and select the sci.engr.joining.welding newsgroup and you will be amazed at the amount of information you will find. If you still aren't satisfied by your search at least you've gained some knowledge and can write the newsgroup a "newly minted" question. IMHO
O/A and TIG welder of amateur standing.