This may be true, but here's my story: For the last 10 years I've been playing with a custom Gina with three ivory ferruled shafts. I cycle through playing with all three shafts and have them retipped once a year, usually at the DCC. This past year, the cue mechanic I usually go to asked if I still wanted pads, saying he didn't think they were necessary. Against my better judgement, I said, no pads. Now, I have two cracked ferrules and a ping in the third. So now I get to look for a mechanic I trust with Gina shafts, will get them back to me in short order, and spend $300.
So maybe you need pads on ivory ferrules and maybe you don't, but I know I will never fail to get them again
Lou Figueroa