The 125W transformer gun from Krepa (was it Krepa?) is really good. I unsoldered a big fat 4MB flash memory chip with it with about million pins spaced about 0.7mm and soldered it on a different board and when I removed all the shorts between pins (for some of them I needed a sharp knife because they left thin whiskers that refuse to fall apart even with a lot of colophonium, heat, sucking, rubbing with the lug and sucking away with desoldering braid), it worked.
The expensive Weller soldering station unfortunately lacks the key feature "bend the lug into a square shape with predetermined dimensions" because it doesn't have a lug. so I consider this to be a final proof that the soldering iron really pays off, considering it's low price of just 25 CHF + work to recut the torn down M3 screws into M4 ones. CL<