According to a certain Wellknown sage(and onion) the change to Dysons etc. came about because the "standard" broom tends to emulate the back string of a thong and can be very uncomfortable especially when doing rapid mid air manoeuvres, whereas the Dyson and other more "wide bodied" devices stay grounded on the external cheeks.
AAlba, I'm afraid when purchasing such devices It is vital to note the position of carrying handles and other fittings that might be uncomfortable in flight, A well fitted safety belt is also a wise precaution!!1