Proto Baby SlaYers VS Rad Crowbars

Proto heat treats their bars meaning that they are unarguably stronger. Rad bars are also different to proto in the sense that they have backsweep to them, something you may want to think about
 
Thanks @ grant.
I need strong bars so I'll go with the SlaYers but does anybody know in what size do they come and how much they weight?
 
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