I attempted to solder the LT3464 to no avail, I used extreme care and was able to get one pad soldered to a really thin gauge wire (see pictures). The problem was, when trying to solder the next pad, it would melt the pads adjacent to it undoing the connection. I tried using the old solder paste and hot air, that didn't work at all. I don't know if the paste was just old or that's the nature of the substance. I used the old solder paste because the new syringes of solder paste you ordered seem to have gone missing. Last we saw them they were with the batch of flux pens you ordered sitting at the solder bench. I don't know if someone moved them or took them from the bench, we looked but couldn't find them anywhere. We'll keep our eye out for them. The USB microscope helped to setup for the solder job and to help check to make sure the connection was a quality one, like I said though, setting a joint without undoing the others was way too difficult. This is the only chip we won't be able to setup a testbed for. I talked to Alan Huynh and he's looking up a replacement chip and should email it to you shortly. A chip we can put on a surfboard would be preferable. Updated power schematics can be obtained from him.