I also used the pea blob method but perhaps a little smaller.
Lmao i had a look at a pack of frozen peas to get some idea and i gota tell ya they are not all the same size
need to be careful with this vague idea of a pea size, it is quite uninformed to say the least. I have good temps so i guess the littlest pea did me well The largest pea i found just seemed to be too much i thought.
I used the 2 line method and was just the right amount but I'm just experienced. It was better coverage than the dot method on my 212+. Line thickness and length matters. When people say pea sized, it really is bb sized. IMO the best method is dependent on the heatsink surface.