To preface this, I've just ordered some 20 packs of different picks in order the find the "one" that fits me and my playing style (I play an ESP LTD EC-1000 in Standard tuning 10-48, so I cannot vouch that the review would be valid for a Baritone or 7-string guitar).
I test all picks with the following parameters:
1. A fast/heavy metal song
2. Strumming songs
3. Practice pick, ala scales up and down
4. Slow song that requires exact attacks on phrases and is not "shreddy"
On all of those points, this pick does it ALL (except #2 and #4). My personal recommendation would still be a Nylon pick for Strumming songs (campfire singalongs if you will), but for any fast song that requires you to aggressively pick and do fast acrobatics with your picking hand, this is the pick for you.
You cannot order this pick and then NOT play some of the awesome Metallica classics like Creeping Death, Master of Puppets and alike - and this pick suits the ludicrous amount of down-picking like no other. One thing that MUST be mentioned is that this pick was obviously built with HEAVY attack in mind. This is not a pick if you are trying to do minimal movements and slow "plucky stuff", it is there for aggressive and fast attacks on the strings.
To continue with the parameters of the pick - I tried Strumming and solo/typical scale up'n'down practice, but my personal preference is a Nylon pick for Strumming and Jazz III's for the "scaley" and "soloey" stuff.
However, if you are in a situation where you need a pick for awesome thrash or death metal playing and all the picking hand wizardry that requires that, this would be the best for that specific need.
A couple of negative points:
- The print wears out quickly, however, the pick is still usable even after becoming rounded
- There is no 24-piece option offered =(