What CW filter for a Icom IC-706MKIIG?

[KO8S]

Ladies/Gentlemen:  I want to get only one of the optional CW filters for my new IC-706MKIIG.  I was ondering if the 350Hz would be the choice if I only got one because of the RTTY ability that I "might" want to use someday?  Any recommendations?  My CW operating is about 25% as compared to phone operating.  Thanks to all who take the time to respond!  73, Karl, KO8S, e-mail ko8s@arrl.net    

[WB2WIK]

Having used both, I'd opt for the FL-100 500 Hz filter instead.  The 350 Hz filter is a bit touchy and I found makes RTTY operation more difficult.  CW is greatly enhanced with the 500 Hz filter, without sounding too "ringy," as the 350 Hz filter begins to sound.

WB2WIK/6