When is a polishing pad toast?

[SwedishRider]

Just as the subject says: when is it time to retire a polishing pad? I have a number of pads that are getting really stained (in particular, I have white CCS pads used with McKee's 37 360, and they are getting really deep purple). What criteria do you all use to decide when it's time to toss a pad and buy new to replace? Thanks for your insight!

[TTQ B4U]

Ripped, torn, worn down in terms of density, etc. stains from products don't bother me.

[briarpatch]

Just as the subject says: when is it time to retire a polishing pad? I have a number of pads that are getting really stained (in particular, I have white CCS pads used with McKee's 37 360, and they are getting really deep purple). What criteria do you all use to decide when it's time to toss a pad and buy new to replace? Thanks for your insight!

McKees 360 will do that....it has permanently stained some of my Griots BOSS pads

[dlc95]

For me, when it loses it's density. When a pad stays mushy I take it out of rotation.

[BudgetPlan1]

When it launches from your backing plate and lands on the ledge of the garage door?
64115

[showbbq]

I was hoping for edible toast but I guess I'm just hungry