While same day completion is something we strive for and truly desire, it is not possible for all forms of equipment or scenarios. Firstly, keep in mind there are varying brands, models, and types of equipment out there; beyond us being mobile, it is not feasibly possible for us to carry on hand, parts for such a wide array of equipment, especially those less common. Also, as a customer we do not expect you to know exactly what is wrong with your equipment (i.e. my drive belt is broken, safety switch is bad, etc); therefore, often times your generalized descriptive problem requires our expertise and assessment before we know exactly what to order, thus necessitating a return trip after parts are received. Now, that said, we can make assumptions as to what might be wrong based on your description and if requested, pre-order parts but the kicker to this is such that, whether these parts are needed or not when we assess your equipment, without exception, you will be their rightful owner, purchasing these special order items from us. Unfair as it may, this is the only way to keep our business thriving and inventory at a manageable level, keeping on hand only those parts that turn over readily. Without a doubt, based on some of the descriptions we have received versus what is truly wrong with the equipment, we would otherwise be busting at the seams with parts no one needs, not even you!