Excellent, Alex! My late brother, who took up bluegrass mandolin after leaving two guitarist fingers behind in a table saw--and became quite the "django of the mando" swore by a severely thick pick, even for tremolo work. I picked up the mandolin [a sweet century-old bowlback ten-string with triple trebles] after age forty, and also had the rudiments of fingering from helping my son with Suzuki-style violin lessons. Ennywey, I moved to heavier and heavier picks, and now use an oversize 1.2mm thumbpick almost exclusively. Keep on pickin!!!
Dennis