Hello i have a lot to mow and some of the places i mow the grass is very tall...will the QDS that you dump from the seat do a good job with grass? I know they work well with leaves but what about "grass"? Are they very hard to disconnect if you didnt want it to catch the grass? Also does anyone know of a place where you can buy one at a cheaper than retail price? My mower is the Xmark Lazr Z 60" with the 31hp Thanks for your input.