We recently did a trial of alternate headsets (in a BAe-146). The Lightspeed Zulu gave us a lot of trouble and was nothing like as good as the Bose-X which we eventually bought. In fact, next best after the Bose was the much cheaper DC10-13.4 but for long flights, it does clamp on the head somewhat and is likely to become rather hard on the system.
BAe are I think releasing our report to their customers if you know any BAe-146 operators they may be able to get a copy. (Or PM me with an Email address and I'll ask somebody nicely).
If you want something very light and comfortable, I have a
Telex 750 which I find great so long as I'm in a very quiet cockpit; presumably the
2 cup or
single cup ANR version would do both very well, but I've not tried it.
A thought - however broke you are, it's your hearing, it won't repair once damaged - get the best you can and worry about the cost later.
G