First photo sx-862, second photo hx-100, 300C on side pads, 200C inside. Both intentionally just dragged across using t12-c4, not trying to make it look good, if it bridges - it bridged, only wire, no additional flux, and not cleaned, so you can see if it spits around. And ofc, keep in mind that 200 isn't a normal working temperature, I have some more expensive solder that won't even start melting under 200, the fact that you can do anything halfway decent at 200C is amazing. Both solders melting at around 180C, both wetting nicely, both fluxes medium difficulty cleaning, leaving shiny joints. Honestly, I haven't felt any difference, apart from diameter. If I can put it in simplest terms possible - I am doing electronics repair for life, and after trying out several of Mechanic products, I think I will be using them exclusively from now on. You can pay much more for soldering supplies, but you're not gonna find more than 10% quality difference, and as for quality per $, these are great
I am very satisfied with quality and super fast shipping to France