Okay, once more the differences:
Peter said: LISK wraps his victims
Manorville does not
I think maybe:The LISK no longer found the need to spread the bodies in different locations, that wasn't working out so well for him because the Lisk victims were found pretty quickly in Manorville. He found a better way to disguise the bodies, wrap them in burlap. He also knew Gilgo was safe because no one ever found JT or Jane Doe or the child from years earlier.
Peter said:LISK places his victims in a clustered dump site
Manorville does not
I think: Sometimes the LISK places his victims in clusters, sometimes not. The more confusion he creates the better for him.
Peter said:LISK targets prostitutes advertising in the internet
Manorville hunts at street corners
I think Lisk used to target prostitutes on the street but he now prefers the internet, less chance of getting caught!
Peter said:LISK has a kill frequency of average 2 per year, with signs of ramping up
Manorville has a constant kill frequence of about 0.25 per year
I think maybe The Lisk kill frequency increases due to stresses in his life.
Peter said: LISK drops whole bodies in one place
Manorville dismembers them and spreads them all over the place
I would think the Lisk changed his MO to further confuse police, plus he doesn't have the privacy as he had several years back.
Peter said: LISK is a left-hander (showing in a counterclockwise circular pattern when he laid out his victims)
Manorville is a right-hander (showing for example in the angle of the cuts when he destroyed the tattoo on JT's back)
Maybe the Lisk is ambidextrous.
A few interesting facts about those that are ambidextrous.
According to a study by BBC Science:
"The ambidextrous are more likely to possess the LRRTM1 gene (on chromosome 2), which is linked to schizophrenia. Studies reveal that people with schizophrenia are significantly more likely to be ambidextrous or left-handed than people who are not schizophrenic."
"People who identify as ‘either-handed’ score slightly lower overall in general intelligence testing, and most often those scores are lower in arithmetic, memory and reasoning…"
"Also, according to a study from Merrimack College, Ambis can be quick to anger, which suggests a higher interlinking of brain hemispheres found in ambidextrous and lefties. A follow-up study found that the increased hemisphere connections correlate to increased awkwardness, clumsiness and moodiness."