Hi bb1, thanks for asking! Late last year Honda introduced the Big Bag Kit, which can be fitted onto all 19" models (except Mulch & Catch models). It retails at $80 and can be fitted by your local authorised Honda dealer in only half an hour. It has a larger tang and a 10% larger catching bag, and is designed to make life easier.
For more information click here
The up-take of the Big Bag Kit has been very impressive over the past few months - of course, most of the country has been pretty dry conditions over the summer so the conditions could've been better! The Big Bag Kit has also been nominated for 2012 Product Of The Year in Power Equipment Australasia magazine, so I would encourage you to drop by your local dealer and give it a try.
Cheers,
Dylan