Curved and Straight Tonearms


Over the last 40 years I have owned 3 turntables. An entry level Dual from the '70's, a Denon DP-52F (which I still use in my office system) and a Rega P3-24 which I currently use in my main system. All of these turntables have had straight tonearms. I am planning on upgrading my Rega in the near future. Having started my research, I have noticed that some well reviewed turntables have curved 'arms. My question: What are the advantages/disadvantages of each, sonic or otherwise? Thanks for any input. 
ericsch
Raul, After posting, I saw your earlier question to me, up the thread.  The chosen headshell offset angle and the suggested P2S distance do give a clue as to the intention of the designer regarding alignment geometry.  If you are willing to twist the cartridge (in the horizontal plane) in the headshell, then you can achieve almost any geometry with any tonearm, I agree.
Dear @lewm : What you like it is not the main subject here, as I pointed out before. 

In the other side I already posted all the facts around Stevenson A alignment. Useless to repeat again.

Higher quality performance levels mainly depends to mantain the audio system distortions ( every kind. ) at minimum. Stevenson A preclude to achieve that critical target but is up to you.

Regards and enjoy the MUSIC NOT DISTORTIONS,
R.
@lewm : " " I tend to use whatever alignment was in the mind of the person who designed that particular tonearm.. "

that is what you posted here but in your latest post you said:

" For my 505, I do not use the Dyna spec; ""

the 505 designer gaves the set up specs but you are using diferent set up parameters ? ? ! ! ?

R.

Btw, hysteria?, not really only very high ignorance and frustration levels. That's all.