yes you can switch between integrated spider, 5-arm CD and 4 arm modern. it may be possible but cannot remember if you can fit 5 arm atb from the xtr range, there are slight differences.
you can also get single speed ring from somewhere. a search on this topic should bring up a few threads with where and Whatnots.
that's the advantage of this FAFF, as middleburn found.
Of course by the time it became useful, shimano changed the FAFF.
Remember though, this is 98+ FAFF not true retro <97 FAFF
thanks for that, will check it out, and as to the 98+, yes, absolutely, this is my dilemma with the DEAN, it's 1998, my mtb experience is all early 90s but wanted to try an aluminium project and DEAN came up, hence my ignorance and questions, but probably a bit early for the 98+ crowd......