interesting to read the comments re 'bendy tracks'
I don't have any kits that have purpose made 'bendy tracks', so cannot comment on how effective they are, or are not.
But a year or so ago I made a UM T-26 tank
It has the link and length polystyrene tracks, with about 4 straight lengths and a dozen or more individual links per side. The tracks probably rival the Universal Carrier for being tiny & very delicate, which makes the tiny individual links very hard to handle, and very hard to neatly place around each end sprocket, where less than perfect alignment stands out like the proverbial dog's testes.
I decided to try to wrap the long straight lengths around the front and rear sprockets, and they conformed perfectly. I heated the lengths by holding them with tweezers close to a table lamp incandescent (old fashioned filament, non energy saving) light bulb to warm them up a bit first. Perhaps this may be a better way of warming the tracks, than hot water.
It was then fairly easy to line up the individual links and glue them into straight sections, and also easy to glue them so they had sag for the top run of track.