PAP is a must to "understand" a drilling. If someone tells you "I have the pin abobe the bridge", this is by no means an indication of what to expect reaction-wise. For a high tracker, this is a pretty weak pin position, for a low tracker it can produce length and a sharp snap.
4x4 and such are better or more informative "coordinates", since these are based relative to the individual PAP and indicate the core''s strength (or how much of its potential is tapped) as well as something about the basic reaction shape (through the CG/mass bias placement). Additional info like "pin above the fingers" and top weight are also helpful to judge a drilling and the reaction results, but this already gets sophisticated.
There are various notations for drillings, and I won''t delve further into the subject. But a good starting point is Lanemaster''s drilling sheet - well hidden on their site, but very comprehensible:
http://marketing.lanemasters.com/LM_Ball%20Drilling%20Instructions_09.pdf--------------------
DizzyFugu - Reporting from Germany
Confused by bowling? Check out BR.com''s vault of wisdom: the unofficial FAQ sectionEdited on 1/26/2010 9:05 AM