Companies like to raise prices at the turn of the year. In this respect, an earlier removal could already pay off. If the GU also removes it, that is not so relevant, then it should be included in the fixed price and he can then choose when to remove it or possibly just insert it in between. What one should definitely not do long in advance is to have the fine grading done. Because this can be destroyed by weather influences, especially frost, so that it would have to be redone again shortly before the base slab. Apart from that, I can’t think of many advantages or disadvantages.