As for the article--Gronch refers to these unknown "VP pros" because he's afraid of what the collection of commercialized VP writers would about him say had he not included this message.

His reference to those many 25c FPDW machines was only meant to appease the AP crowd as to not hurt their fluffy feelings. NO ONE makes any money on those things except the casinos, and the +1.5% results for the casino at Wynn from when I had them put in 25c/50c/$1 FPDW machines easily proves the point to me.

These mysterious "pros" who are supposedly "hammering" higher level VP machines into submission along with getting free beanies with propellers that are self-valued, of course are never identified, always canonized, and are left to "lurk on the streets of LV" as if some Divine Authority is protecting them. And it is, as everyone can see, nothing but extreme BS from beginning to end.