I have the AT540 and have always thought it to be a little bright sounding with my rigs. I haven't tried it on my Denon DP62-L yet.
The table came with a vintage Empire 999VE/X on the straight arm that sounds great but doesn't want to stay in the groove. Tracks light at .5 to 1.5 grams stylus force. I installed my Nagaoka MP200 on the s head shell and it sounds very good.
I also have a Stanton 680 series with an aftermarket vivid line stylus that sounds very good as well
I am considering moving to a Moving Coil but need to keep the price under $1000 (preferably less) since I will need to upgrade my phono amp.