Best card stock for die cutting?

mom I have difficulty with glittery cardstock too, I use extra shim paper so I have more pressure. I have 2 kinds of glitter paper one it feels like plastic on the other side, this just won't cut out nicely so now I just use it for simple shaped dies or punches. The other glitter paper has a paper backing, this cuts out better,still have to push some pieces out, but it's definitely better.
I cut 110lb cs with extra shim if my die is intricate.
The metallic cs from Michael's cuts out nice too.
And their 65lb cs its easy-peasy to cut.

I like the glitter paper from Best Creations-- no shedding. But it can be hard to cut.

One trick is to flip your sandwich. So, I have a cuttlebug, and I usually make my sandwich as A (base) plate, B (thin clear) plate, paper, die facing down to cut into B plate, C (thick clear/spacer) plate on top. (Sometimes I'll do A, C, B, paper, die.) That seems to work better for me than the recommended order of A, C, die face up, paper, B plate.

When I am cutting glitter paper, I will often do multiple passes through the machine-- like 5 or 6. Don't let the plates come all the way out, just turn the handle the opposite direction. (Not letting the plates pop out minimizes the chance the die and paper will slide.) But sometimes, I still need to add a shim or two, and I've found that sometimes all I need is a post it on top of the part that isn't cutting the best. (When I figure out that that is, I actually will stick the post it on the top plate.)

Unfortunately, it is a lot of trial and error, just because everyone's machine varies slightly based on how it's been used.

I'm using Lawn Fawn's glitter paper right now for a very intricate background die and it's cutting perfectly with my Gemini Jr. I get far better cuts with my Gemini Jr. than I ever did with my Big Shot, but glitter paper can be an issue with any die cutting machine. Something that I found that works for me with difficult dies and/or paper is to gently rub paraffin wax on the die. It's similar to using wax paper and I find it helps with difficult dies. It can leave a residue behind if you use to much, so use it sparingly.

I use a chrome precision plate in my Sizzix machine and that has made a HUGE difference in die cutting intricate dies. I also like MFT glitter paper and their card stock which is 100 pound. I find the heavier the card stock the nicer the die cut is in my opinion!