[0] https://en.wikipedia.org/wiki/High_Altitude_Venus_Operationa...
Are you aware of wind velocities at an altitude high enough to get you 1 bar on Venus?
Think Goodyear blimp --
in hurricane Katrina.
OK, now that you've got a picture of that in mind --
double the wind speed.
Venus is a hellscape by comparison to Earth, but we are incredibly resourceful apes with imaginations unbound by meagre constraints.
This altitude is within the high-velocity "superrotation" region of the Venus atmosphere, where a constant wind moves at a velocity on the order of a hundred meters per second. This means that over the two days of the mission, the balloons traversed about 11,000 km, from the night hemisphere into the day hemisphere. About two days into the mission, the primary batteries were depleted, and contact was lost.
https://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/201100...
Edit - According to this the zonal winds are ~60mph at certain elevations.
https://trs.jpl.nasa.gov/bitstream/handle/2014/44535/13-5079...
I still have fantasies about Venus being somehow a more likely [very] long-term prospect for terraforming, despite the planet's rotational problems. Seems like a thick atmosphere filled with (admittedly lethal) useful gases and potentially-organic compounds offers a much better resource than Mars' practical lack of a one.