We had coiled leads on our bose sets in two SA 341/2's.
Having said that not that impressed with them (and if you are using a battery pack when it expires they don't work as passives). We had them wired in and the plugs are small fiddly and of poor design
Have just spent a week using a set of Telex 50-D again not got coiled lead but can't argue too much about the noise quality. Very easy at hearing those controllers who insist on chewing sweets while talking to you or otherwise try their best to make their transmission unreadable.
Am going to try a couple of other pairs though next week as the Telex is not one hundre percent perfect fit for me (and they are not small). Will be using the Sennheiser HMEC 400 and also the Pilot 17-79 DNC XL headset. So most expensive (bose excluded) to cheap end.
Oh and have been informed from reliable source that the lightspeed headsets are no good for regular use as they break a lot and are not built for more than very light private use...and appparantly even this can cause things to snap off.