Bowler Ratings

PatternStTwCr
Oily:9.599
Medium:777
Dry:333
Sport:765

Bowler ratings are from 1 to 10 in order of Stroker (ST), Tweener (TW), Cranker (CR)

General Info

Coverstock Specs
Name:F74
Type:Reactive Solid
Box Finish:neaT
Color:Green / Ivory
Empty
Core Specs
Name:NA
Type:Asymmetrical
RG:2.481
Diff:0.054
Int. Diff:0.020

The Green Mamba joins the Black Mamba at AMF’s highest price point. This time, instead of a high RG symmetrical solid, we get a low RG asymmetrical core. The Green Mamba is the first ball in which AMF has used an asymmetrical core in this part of their catalog, replacing the OMG! line. The brightly colored sphere is finished at the “T” pad in the NEAT finishing system. Do not let the appearance fool you. This ball can create some friction.

The strength of the F74 cover and Self Righting Core gave us our best look on the heavy test pattern. All the testers were able to line up quickly and strike often on this pattern. The Bank was one of Stroker’s favorites and it is no surprise that the Green Mamba gave just as good a reaction. The Green Mamba slithers through the front, starts picking up in the midlane, and continues with a venomous back end. All the testers were able to keep this ball at the box finish and just make small two and one adjustments as the session transpired.

When we moved to the medium pattern, we started seeing signs of the Green Mamba hooking too early and giving us a hook/set reaction. Tweener and Stroker moved further inside to catch more head oil while Cranker went with an addition of some polish to the cover to add length. These adjustments got us back in the pocket on this pattern.

The short dry pattern offered nothing to any of the testers at the box finish. We applied polish to all three test balls and it improved the reaction but not to the point where it would be anything we would consider using in competition. Bowlers looking to play on these types of patterns will want to use longer pin to axis drillings and get the pin high above the fingers.

Our sport pattern gave us a fair reaction with the Green Mamba. Low rev rates will benefit more from the strong hooking motion on flatter patterns.

Performance Ratings

NameValueComments
Torque6.5
The Green Mamba really reads the midlane strongly. The medium intermediate differential allows for a strong continuous move at the breakpoint.
Length13
The length is ideal for oily conditions. When we added polish, this ball gave us another five feet, creating a much stronger breakpoint and back end reaction.
Back End17
To say this ball is continuous is an understatement. The cover and core are a match made in snake heaven.
Total Hook53
The Green Mamba will handle heavy oil with any other AMF ball. This is the type of reaction that is desired on fresh heavy oil. It is strong up front with a smooth but continuous back end reaction.

Strengths

The strong cover, low RG, and high differential core make this ball great. The Green Mamba revs easily and has a strong continuous roll at the back end.

Weaknesses

The Green Mamba is so strong, you must have oil present to make it work. Players with a lot of speed are the only ones who have a chance of keeping it on the lane without some polish.

Overall Summary

Those who have some trouble controlling the breakpoint with others balls will not have that trouble with this one. The midlane movement is strong and the breakpoint is controllable.

The BTM Ball Testing Team

About The BTM Ball Testing Team

The BTM Ball Testing Team is led by Eric Martinez. Our team of three testers has thrown and reviewed hundreds of bowling balls for Bowling This Month. When not testing balls for BTM, Eric owns and operates University Pro Shop in San Antonio, TX and he is an avid competitive bowler. Click here to learn more about how we test and review bowling balls.