anyone have any experience with the engineered sheathing with built in vapor barrier and water retarder (i.e. huber products). i'm just curious as to the cost of this material versus traditional sheathing and felt or house wrap. i'm not to familiar with this product, just researching a little. i'm still convinced that traditional house wrap and flashing is very effective if installed properly although this engineered sheathing seems to have good curb appeal during the construction phase which might lure in prospective customers. any info would be appreciated. thanks. jason