I’ve had about 3 or 4 Cracked Sash drop for me all together, and I find the purple rarity Tedior Instant/Quick/Speedee/Whatever else Shields are usually better. Cracked Sash is just more consistent in the stats, but it doesn’t have elemental resistance. The OP10 Quick Shield I got is Akaline which is really fun to play around with.
The thing is you have to spec right and use specific class mods/relics to get the most out of these shields. I normally just run around with a perfect 50/49/880 Antagonist with a 1.6 ish recharge speed. With Grit and my shield skills, I’m damn nearly invincible against anything that isn’t a raid boss nova.