I have some cracks in unknown aluminium tube to weld up.
I haven't TIG welded Alum for 30ish years.
I purchased some ER5356, partly because I remember almost nothing about this sort of thing and party because the guy I buy my TIG stuff from currently has no 4053.
Given my "some what" lacking experience.
Is one likely to be better than the other?(or unanswerable given the unknown alloy)
Is someone with my level of experience going to notice a difference?

I have heard it said you never know what you are going to get tig welding unknown alum until you light the torch.


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