I know virtually nothing about the .300 Whisper myself other than a little reading when it first came out. I did find this forum that should be able to help you out a bunch though. Should be able to find everything you need to know with those guys.
Well it would sure work for that. Here in Nanny state New York suppressors are compeltely illegal so its not even an option. I have to think archery if keeping the noise down is a concern....enjoy your freedoms while you can and fight to save them! VOTE liek you mean it - your freedom depends on it!
Try to put your tree stand in a tree with plenty of background cover, keep the prevailing winds for that time of the year to your face, and take care of those pesky squeaks and creaks your stand may have developed while sitting in the shed. A good treestand lube can be made by heating petroleum jelly until it reaches a liquid form. Some hunters have reported success by including a cover scent in this mixture before applying it to their stands.