Take good lead-free-SAC solder and together with a somehow acceptable iron the joints get as perfect as they can be. Cheap SN99 solder with bad flux can really be painful, but beside that all that whining about lead-free can only come from people who intentionally want to be poisonous.
Definitely with lead. I absolutely hate the lead free one 😅. The PCB's become a mess if you ever have to do repairs and many times you end up damaging good components.
How can I get my hands on leaded solder in Germany? Reichelt stopped to sell it years ago and I forgot to order a lifetime supply. Is it available from Aliexpress somehow?
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