I'm wondering if your 1.5 mm grubs are making good contact at swaybar ends. Haven't had any problems with any of my 4 Arrmas other then they've come loose once or twice. Think Warbux bashes without them. I wouldn't remove mine as I like cornering at high speeds, think it would roll way too much. Regarding steering links, I'd check if maybe you need to turn one a bit to change the angle between 2 attachment points or buy
AR330230 composite ball cups goodie bag. You may have gotten an oversized plastic connector and just need to swap it. In all the brutal bashes I've done, only popped off once, maybe twice.