Is your Tube commute too hot to handle?

Here's my film on the new Victoria line trains which, instead of cooling down passengers, are at the moment making the Tube hotter.

A number of passengers have complained to me about the wafts of heat being generated by the new trains.

According to London Underground this is a "transition" problem due to the fact regenerative braking can't be turned on yet.

It will be turned on in the next few weeks and then hopefully the temperature will drop (slightly).

But long-term heat on the Tube, especially on the deep-level lines, is a real issue. Tell me about your experiences.