My 06 188 (175 Yamaha) has 165 hours with motor warranty expiring in March. I had thought about a new Z518 but I don't gain alot except for the 200hp motor.
So my thought is to keep the 06 (in perfect shape) and do some upgrades:
HDS Gen 2's console and bow
Hot foot
jackplate
Fortrex 80 (not a must as long as current Maxxum 70 is good).
Any other suggestions????