not sure if they are not manufactured or just not advertised as particle covers any more.

basically, particle covers went out of favor with bowlers after developing a reputation for not lasting very long.

Any advantage to Partical balls or disadvantages.I notice only a few are manufactured anymore.lord field has those covers from time to time.

As does Storm and Roto-Grip, only they're not identified as such.

If you refinish a particle ball, it removed the glass particles in/on the surface and it lost its "teeth" that was in the cover.
they just weren't the same afterwards
Take the Hammer Scandal (and others) they have carbon fiber infused into the coverstock like a bunch of single hair strands, refinish the surface and new ones are present so it keeps its original surface design

There were all sorts of different particles.  The glass beads were in the Chaos line, I think.  Not all particles were like that and most were harder so they did not sand flat.  Diamond particles were used in one company, LaneMasters?  Visionary had a particle that seemed to swell up after it encountered and absorbed oil, Granite Gargoyle?  That ball would start out feeling smooth and after a game it started to feel fuzzy.

Brunswick had such hard particles originally, that you needed special abrasives called Trizact to affect them. Most particles weren't easily fracturable, like the glass in Columbia based particle balls.

Particle stuff was always good in my hand...I hate the hockey stick type reactions.

Today, Visionary has the Raven (plain Raven) which is a light load particle.

agreed! and I only had one die on me, a carbide bomb after many games.But it was a fantastic ball.

There were all sorts of different particles.  The glass beads were in the Chaos line, I think.  Not all particles were like that and most were harder so they did not sand flat.  Diamond particles were used in one company, LaneMasters?  Visionary had a particle that seemed to swell up after it encountered and absorbed oil, Granite Gargoyle?  That ball would start out feeling smooth and after a game it started to feel fuzzy.

God, the 5 o'clock shadow my Granite Gargoyle would get after bowling a squad was something else...literally felt like the ball had stubble on it. And I don't care what anyone said, a particle pearl ball has a reaction all it's own...I remember in my "better" days just killing a season throwing a Morich Onslaught and a Columbia300 Flipside Wired...

Mi 2 Az

My Raven does not get the fuzzy feel to it. The load of particle in it is truly a "light load" as the VBP website indicates.

I just drilled a fresh Ogre Particle and have a brand new undrilled Granite that should be at my door Tuesday....can't wait.

I also picked up a NIB Particle AMB Centaur from MonsterStitch a few weeks ago and was able to get my hands on 2 CASES of Burgundy Gryphons a few months ago...both have the "fuzz" feel to them as well.