Is anyone aware of a way to force Shipping to be added later on certain products? I have items that are special order from overseas and we always invoice our customers for shipping only once they arrive in stock to ship out in order to provide accurate pricing as it can take 3-6 months before they arrive.

I have tried putting 0 in all the dimensions and weight, but I still get a shipping calculation from the system ...which I find odd. the only thing i can think of is to set them to overweight but then if other items are added to the cart no shipping is added at all and I have to charge them later for all parts, including the ones that should be shipping immediately as they are not special order.

Thanks in advance!