I agree with FusionKing that you did not open any can of worms & your query would enlighten those who have no experience with this type of rod. That said... it has a place. There is a tremendous amount of the so-called "potmetal" that is a garbage diecast in use everywhere from home appliances to the auto industry.
Just to give an example of easy $$$ that can be made. My boss's wife had (2) extremely decorative plant tables on their patio that was given her by her late father. All painted in antique green/charcoal that were really nice. She bumped the first one with a sweeper & knocked it over & broke it in (3) places in the middle of the frame. The second one broke after getting blown over by a wind gust. My boss brought them in & asked if I could fix them since I do all our companys' aluminum welding at my home shop. I indicated to him that I could do them, although it takes a special rod & the welds would need to be re-contoured to the frame design & that would take some work. He asked how much & I said $100 each considering the time to prep, weld, & re-contour to original shape of the broken joints. He said ok as these were his wifes' most precious gifts from her father & would pay that to get them restored. So, I used the HTS-735 I have & the repairs came out superb. It works well once you get the "feel" of flame/heat control with diecast and being not careful would result in huge blob falling off if heated too much. It takes some practice. Anyway, get some to try & maybe practice if you can get some scrap pieces. Gotta be as clean as regular aluminum welding.