Agreed, I also use Kester 63/37 solder, been using it professionally for over a decade, & liked it so much I started buying it for my personal use, very happy with it. Those who are interested in silver solder should keep in mind that 1., yes, it does take more heat to make a good joint with it, & 2., the point in soldering is joining two materials, & the solder, as long as it joins them properly, will not have any large effect on the electrical resistance of the materials, there's just no point is paying the price & going through the extra trouble to use silver solder. Additionally, some may want to try lead-free solder, but that's also mostly a hassle, as lead-free is not very easy to use(higher chance of bad solder joints), & if you exercise care, you can work with regular lead solder(63/37 or 60/40) with little to no risk....