Which SYBR Premix should I choose – RR420 or RR820? What is the difference between these premixes?

Which SYBR Premix should I choose – RR420 or RR820? What is the difference between these premixes?

RR420 is recommended for higher sensitivity, lower Cq values, higher yield and longer templates (< 570 bp).

RR820 is provided with an optimized buffer for increased specificity when primer design is suboptimal; reduces formation of primer dimers and gives robust amplification of templates up to 73% of GC content.

Real-time PCR products