After missing that fourth oval following the trio, tonight it was no problem. I could even see the faint darker ring around one oval. The SSTeB even showed it's darker borders with some lighter rifting inside. The STB actually broke into very tiny dark spots just ahead of BA. That was sweet.
The SEBz was quite distinct, especially that large bright knot. Not much detail seen in the zone itself, but it's brighter backbone was very nice. The dark spine of the SEB was very evident. The trailing portion of the zone actually showed faint downward sloping fragments instead of a faint rift. The undulating southern border was evident.
One striking aspect was the dark cloud rolling over the GRS, it had a strong dark S shaped appearance and a tiny loop or arc structure protruding into the STrZ. Tonight, the GRS was more distinct, almost as two parallel bars running across it, including across it's center.
The EZ was a bit easier with some nice festooning and interplay of white and blue-grey clouds. There were some festoon like clouds along the northern border of the SEB, as well.
The NEB was a bit difficult to pull much detail from other than it's normal undulating appearance across the northern border. Two rifts were noted, one below a flat festoon base near center and another on the following limb. There is a large lump protruding north near the following limb. The NTrZ seemed lighter across it's border with the NEB.
The northern zones and belts are simply a maze of fine belts with darker concentrations cut with brighter cloud. That double humped feature was crisp and clean, it was the view that inspired this sketch.
On 4 Feb at 1315UT, seeing was Ant I and I estimate transparency to be about mag 5 on the zenith. Magnification was 240x with an 8mm TMB II. System I 157, System II 94.