Im very excited to see how these drag curls feel.. I saw a vid on youtube on how to excecute it properly..
For me, incrementing on all the compounds and building my body overall with progressive overload and gaining muscle is the surest way for me to build big arms...
Just sticking to the basics and leaving out the fancy stuff seems to work for me but this is all individual.
Some swear to synergistic type training, maybe high frequency, lower frequency, drop sets, suepr sets etc.. It all depends on finding what works for you. For sure, these are all intensity blasting techniques to keep things fresh but I believe in keeping bicep training basic IMHO. Dont let it get too complicated.