I guess I'm not really explaining myself very well. I have read all of the posts on TC compression and I have a good understanding of TC conversion. What I'm asking I dont think has anything to do with TC compression.

I know yourself and Don are more than capable of understanding what I'm getting at, so it must be my explanations.

"Indices should be calculated in the same way you're going to use them"

If the above statement is true, then why do indices for standard Hi-Lo (not Hi-Lo lite) that are generated by full decks have better scores when more precision is used when converting to TC? If the above statement were correct, we would be advising people who use Hi-Lo to never use more than full deck precision when converting to TC.

Examples:

Hi-Opt II- full deck generated indices. The more precision when converting to TC, the higher the score.

Hi-Lo- full deck generated indices. The more precision when converrting to TC, the higher the score.

RPC- half deck generated indices. The more precision when converting to TC, the *lower* the score.

That is my dilemma.