I didn't really learn to solder until I started maintaining/fixing my machines. Circuit boards on the work table are one thing, but soldering on the machine is another. If you own machines, soldering is a skill you need to learn. Can be tricky sometimes. I do like solder w/lead better than the new stuff. The leaded stuff flows better and is easier to work with for me. I need some braid and tips before I run out. Can't find it locally anymore. Will have to order some soon. Considering a nice solder sucker too........