EricHartwell wrote:I now have 3 balls Motion Holed...
Hammer Nail 5" pin to PAP ............... Motion Hole 1 1/8" x 4"
Hammer Viral Pin in the ring finger .... Motion Hole 1" x 4"
Blue Hammer 3" pin to PAP .............. Motion hole 7/8 "x 4"
The Hammer Nail spin time 5.1 sec, a 3.1 sec improvement and the Drilling angle decreased 8*.
It is serving me well both shiny and dull. Shiny it is working well on a broken down 42" house shot. It is my go to ball at this house when I am bowling inside of 3rd arrow. Dull it is an absolute monster and was too strong for anything other than a fresh condition. I have been trying it on several different conditions in my sport league as well as house shots. I start on 44' London pattern this week. Just put a fresh dull surface, green scotch brite 6 sides, in preparation for it. Will report back on how it preforms on the longer pattern.
The Hammer Viral (spin time 7.5 sec.) started out very skid snappy without the hole. Shiny surface of any kind gave me a very angular hook zone and lots of 9 pin leaves on pocket hits. Dull surface helped but made it lazy in the pocket, lots of flat 10 pins. After the MoHole shiny surface is completely out of the question. It is ridiculously long and angular making it extremely difficult to control. After the hole And dull surface (800-1500) it is giving me an excellent look. It is what I consider to be a Benchmark type reaction and not burning up early.
Nobody believes it is only a 13# ball. In actuality it isn't, weighing only 12# 14 oz. with 2.75 oz top weight. It hits like a truck and throwing lots of messengers
It is the first ball out of my bag for THS.
The Blue Hammer (spin time 8.1 sec) This is an interesting one. Base layout 80-3-45, 4000 grit surface skid snap type reaction. Another ball leaving lots of 9 pins for me. Dull surface (800 grit) improved the carry but took the length away forcing me to play deeper inside the oil line than I would like with urethane taking away my margin for error.
Here is the interesting part, after the MoHole the ball got smoother/weaker. I wish I could have spun it up on the DeTerminator prior to drilling the MoHole. I believe this is due to the Pin to PAP, 3". I was afraid to make the MoHole any larger and killing the reaction any further.
It gives me the best look in my arsenal for short oil sport patterns with it dull (800 grit). Keeping the ball clean was a chore. Using both a leather shammy and by using an approved ball cleaner to keep my reaction and not create carry down.
I am keeping this one at 4000 grit and it is my go to ball for high friction conditions.
With the lack of Asymmetrical choices at 13#'s I will definitely be considering more Motion Hole "experiments" as I fill in a couple of holes in my arsenal.
I am getting to the point where I will not be considering them "experiments."
Added a 4th Motion Hole to the arsenal, 13# Brunswick Edge Pearl Base layout 80-3-40
Well, it is still an experiment. Darn generic light weight cores.
Motion Hole 1 1/8" x 3 3/4" 2.75 oz top weight
The Motion hole barely knicked the core and no noticeable change in ball motion. PSA and spin time, 6.2 sec was unchanged.
But...
When the ball hit the pocket it did Not respect the 3lb 6oz pins at all. It was finishing to the Left of the 8 pin. No deflection at all. In one game of use I left two 4-9 splits, and three 9 pins. The ball was making a left turn while it was going through the pins. In conclusion, it is definitely possible to go to Big with a Motion Hole. I kept making it larger looking for the length, never got the length but the mechanical leverage in the pocket kept getting stronger to the point of to Strong.
I am going to plug and relocate/pitch the Motion Hole to hit more core making sure it is a full 4" in depth. To accommodate this I will need to drill the ring finger deeper. I will also be removing the Switchgrip thumb to drill it deeper as well to remove more core material.
I am hopeful that the drilling of the ring and thumb deeper and relocating the MoHole will create the Asymmetry I am looking for.
Update:
relocated the Motion hole, the whole bit hit it but only for 1/4", still barely hitting the core, 7/8" x 4" top weight 1.5 oz
Ring finger 3 1/2" deep
Middle finger 2 3/4" deep
Was able to drill through the bottom of the switchgrip thumb with 7/8" bit to 4" deep
PSA moved from 3/4" left of the centerline to bottom edge of thumb hole on the centerline, a reduction of 5* on the drilling angle. Flare was reduced and the Spin time increased 1 sec to 7.2 sec. Ball motion was smoothed out and it hooked less. I rolled 2 games with it and only left one 9 pin.
This "experiment" was tp produce a ball down from the Viral. I think it is mission accomplished.