Well,

These are not negative comments at this point just observations about this method.

It may be a tremendous method!  I have not drilled to try ...and I only expect some minor changes...others using this method may have dramatically different results.

Differences with the Bill Taylor method:

1.  Thumb pitch is NOT correlated to span(specifically says so in instructions).
It is based strictly on thumb flexibility in relation to the "heartline". ie you have a certain thumb pitch...regardless of span.  Hmmmm?

2.  Where Bill Taylor assumes a 0 (f/r) pitch in fingers(in most cases) and adjusts thumb pitch for span length while leaving fingers at 0 pitch this method assmumes your fixed thumb pitch and then states that "longer" spans(not clarified if this means stretched spans or longer(longer than what?) tend to use reverse in the fingers.  To give an idea what longer is he illustrates in this book some spans around 4 1/2 and 4 5/8 and has reverse pitches in fingers of about 1/8 and 1/4.  

3.  On lateral pitches it appears that this method will tend to give less total side pitches than the Bill Taylor method and ALSO that the method has a 1/4 bias to the left from the Bill Taylor method.  ie in the Bill Taylor method...Forearm test that point at ones middle finger are 1/8 lateral under palm(right for a righty).  For this method that position usually means about 1/8 left!  This is quite a difference.  This method assumes 0 at in between the middle and ring finger.  Taylor assumes 1/4 under palm.  Big difference.
A refresher taken from the FAQ section of this website(I added thsi material I think).  Here is Bill Taylor's lateral pitch test.

Table:
Index finger = 1/8 lateral away from palm
Between Index and middle = 0
Middle = 1/8 lateral under palm
Between middle and ring = 1/4 lateral under palm
Ring = 3/8 lateral under palm

Also in the notes of the Bunetta method is the point that little lateral pitch in any direction should typically be used.  He does in some of the illustrations given shown show some 1/4 under palm lateral drillings.

4.  Vague differences in span discussion.  Though conceptually the same this method does not give the specificity that Bill Taylor's does on span length.
Bill says if hand is cupped on ball(thumb not in thumbhole) and middle is 5/16 longer spans are equal.  Thsi method says if middle is longer then spans are the same.  However in diagrams it shows one measuring a line from base of thumb to joints and one can see that one could accurately use a small steel ruler and see difference and in accurately assess factor one's offset of thumb to fingers would make in span.

5.  Difference if pitch between different span lengths.  I have not ssen this before and found fascinating.  Discussion basically says that if a finger has a longer span...the finger that is longer should have less pitch than the shorter finger.(when he says pitch he always means forward) to capture the same feel at release between both fingers.  He goes on to show in his pitch diagrams that if a guy has 4 5/8(is this a LONGER SPAN..as illustrated above) he illustrates 1/4 reverse and the finger with 4 1/2 a reverse of 1/8.  A 1 to 1 reduction for increases in span.  Nowhere before have I seen this(however I now use an equal span).

6.  Where Bill Taylor always specifies a relaxed fingertip span(front lip of finger hole or insert to a line 1/2 the distance between last two joints of bowling fingers).  The Bunetta method gives a thorough illustration and brief discussion of the differenced between releaxed fingertip(about a pencil under palm) and the stretched...palm almost touching the ball ...complete distance.

Anyway...I have done no testing of this method and am not a great test subject for many of the concepts.  However if I did use them it would change slightly my forward reverse to more forward...would probably add some reverse to my fingers and would also lessen my left lateral to near 0.

I am going to do a bit of testing with a non curren lineup ball and will get back with any results or impressions.

However...I posted this here to see if we had some drillers who have been around for long enough to have any impressions of thsi method versus the Bill Taylor method.  Or any other method.  Or any comments....Is this method just an old time outdated method???

REgards,

Luckylefty

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Proud owner of a 140 first game average this year!  Don't bowl me the second two games though!  (two warm up balls in league..thanks proprietors)

In the 60's and 70's Bill worked for a bowling supply company out of Chicago, he used to do a lot of guest appearance's in the midwest. Maybe some one from that area could help you.