Hi! I'm new to maples and this forum. Looking for some answers. Recently got my second maple from an online nursery, as there are little other options available in my area (Austria, Europe). 1. Is this graft bad? It looks uneven and bulging. Is there a way to fix it? 2. How old would you estimate this Mikawa? 3. Do you think approx. 8 hours offull sun from 06:30-15:00 in Zone 7 (Austria) would be too much? If so, would a roof with 50% shade cloth, reducing full sun exposure to 06:30-09:00 work? Thank you!