i have one and also use carbon blast spray. ive also been busted by deer using the suit. so my opinion is it may cut down but not eliminate. i would worry about the wind first and mostly. on the other hand the prices have come down quite a bit on these suits and if it gives you a little extra confidence i say go for it. its no sure bet because you need to be on top of re-charging the carbon in the suit and you have to be careful not to get scent on the outside of the suit. your best bet is to use the wind and if your hunting a spot on the ground make sure your travel trail to this hunting area doesnt cross the trails or areas the deer will be using. that sometimes means making a trail of your own and may not be a direct route.