[koputai (Jason)]

Hi Folks,
What with Mars this month being at it's best for years, I'm contemplating getting an eyepiece for the occasion. I have an f6 8" Dob, fL=1200mm.
I'm thinking something around 6mm, in a 60 to 68 degree. Candidates at the moment are:
1) Televue Radian 6mm
2) Orion Stratus 5mm
3) Burgess/TMB 6mm

All will give about the same FOV, but the Stratus will give 240x versus 200 for the other two.
I already have a Nagler 13mm and 2x Barlow, so is it actually worth getting a 6mm eyepiece?
If so, how do the three above compare? Should I throw a Nagler 5mm into the mix, giving 240x with a bigger FOV? (21' vs 18')

Thanks,
Jason.