Subframe ball joints questions for CPP rep

I purchased recently the full subframe kit and want to say first of all it is nice! I like it and am just installing it now after powder coating etc. I am though getting inquiries from people saying to watch out for the ball joints and that they are of questionable quality. I want to know a few answers to some questions...

Was there a quality control issue with the ball joints?

If so, is there a timeframe that it was addressed?

What is the extent of warranty on the new ball joints the kit comes with?

Thanks!

The ball joints in our arms are actually better then a OE style ball joint, these are redesigned and are stronger then stock.

I understand from a post on another site there is a "bung" for the lower call joint on the Mustang subframe. This keep the spindle from tearing uo the boot on the ball joint.

I have installed the kit on a 65 mustang using a Granada spindle.

Can I get part number for the bung?