haha, that pick thickness switch is tuff’! You may just find yourself over the 1.0 thickness pretty soon, that’s the bottom end that most play in bluegrass. Seems a really common thickness in bluegrass guitar tends to be around 1.14 and once you get to that thickness and grab a 1.0 it will feel like you have a piece of meat on the end of a limb off a sapling or playing with a rubbber band. Now when it comes to mandolins…well let me say I’ve asked I few mando players to borrow their pick when I need to open a bottle of beer! …those guys get crazy with the thickness.
One suggestion on getting up to speed that helped me get over a hump was learning to keep the up-down picking pattern going and not letting it stop. At some point it becomes subconscious. I liken keeping the alternate picking pattern going to doing “finger rolls” or finger picking. I mean when you start doing rolls or even cross-picking it is tuff’ at first to get them down then once you have it you have it and really don’t need to reference or work on them much, it’s just something magical that happens and you are done with it. Same with the alternate pick pattern in bluegrass, keep that sucker going and your speed will increase…tell yourself next time to keep it going and be conscious about making yourself keep that right hand going. Sure you will have to think about it and one day your right hand will take off by itself and you won’t have to think about it much.
Once you can keep it going and are comfortable with it then back off it, I see a lot of better pickers that can keep it going but they will do double downs from time to time or even use sweeps. On the double down strokes or even double ups (I use double ups from time to time but can’t get the volume out of it) most would refer to this as “economy picking” but they will not use this the entire time, but instead will alternate pick then only use the economy picking for maybe 2 notes then they go back to alternate picking.
Its best to learn it right and there are supposed to be “rules” however I say it’s about the guy playing and what he wants to do.