We all know that Shivas has been on a Rule 8-2 witch hunt. I disagree flat out with Shivas, though I can understand why he holds his view. Still, the bottom line for me is as follows. 8-2(a) discusses indicating line of play off the green. Sure, it doesn't make much sense to have marks on the ball to indicate a line of play since one can't touch the ball to line it up. Still, I believe the rule is referring to objects such as jumpers or head covers placed to indicate a line of play. They must be removed before playing - fair enough. However, let us spose that a mark on the ball had been aligned in the correct direction? If the mark were not removable (its permanent on the ball) , then I reckon the rule doesn't apply.
Lovely, now we come to 8-2(b) which discusses indicating line of play on the green. First off, we have this ball which has marks on it which in theory could have been used for the shot to the green. Why would the USGA differentiate between on the green or off where a mark on the ball is concerned? I believe (and this is imo in the spirit of the rules) that like 8-2(a) marks on the ball are not in question. What the rule is more or less pointing out is that markers on the intended line of play are not allowed while playing on the green regardless of if you are actually stroking the ball or not - unlike while off the green. This is all that is intended and that is that. For some reason and quite unfortunately, "a mark must not be placed anywhere" with "anywhere" being the operative word was used when the rule was re-written. As such, I can understand why Shivas gets his back up, but I do think it is unnecessary. Some time ago when this row first blew up I looked back at the evolution of the rule and noticed that the 1908 USGA wording was ."..but no mark shall be placed nor shall any one stand on the PROPOSED LINE, in order to indicate it..." This wording obviously is quite different and imo much better to convey the difference between rules 8-2(a) & (b).
Furthermore, I browsed the definitions section of the R&A rules recently. I could find no special golf related meaning for the term "mark". However, I did find a definition for the term "line of putt. Since Shivas seems to have the major issue with 8-2(b) this is the definition I will concentate on. Included in the definition is "...the line that the player wishes his ball to take AFTER a stroke on the putting green..." It is reasonable to assume from this, that the ball is not part of the line of putt. However, Rule 8-2(b) states "A mark must not be placed anywhere to indicate a line for putting."
This leaves us in a bit of limbo as to what a "mark" is and what does "placing" refer to. However, we do get some indication that a mark is removable from the wording of 8-2(a). "Any mark placed by the player or with his knowledge must be removed before the stroke is made." Since permanent manufacture or personal markings can't be removed it could be interpreted that a "mark" as used in the rules is not under question. The R&A defacto partially defines a mark as removable. From this line of reasoning and of course assuming that rules 8-2(a) & (b) are essentially in place to differentiate the indication of the line of play on and off the green, it is reasonable to assume that the use of manufacture or personal permanent marks on the ball as indicators for the line of play are legal. When I consider this argument, the history of the rule and that no decision by the golf bodies have gone against this practice, then I can only conclude that it is indeed within the rules of the game and the spirit of the rules.
Ciao