TeleVue 4mm Radian

I have a 5mm Radian as maximum power for my TV85. I am completely sold on them over Plossls because of the eye relief alone. I saw Syrtis Major for my first time on Mars in September thanks to this Radian.

My question is, dare I go higher with a 4mm or 3mm Radian? These cross the common maximum power-per-inch of aperture rule. Does anyone out there have comments and experiance with these Radians?

Hi,
I have a TV-85 with a 4mm radian and use the combination almost every night. It's interesting seeing the comments that the 3 is too much. At 150x (4mm) the image on Saturn and Jupiter does not appear close to breaking down. I have also been surprised at how great M42 looks with the 4mm. Bottom line -- I think it's a great combination.
Jim