I like metal or partial metal lower hulls and components. I do not like the extra weight of an all metal turret though as it is harder on the drive mechanisms that need to operate that extra weight. Keep that in mind. Nothing at all wrong with any metal insert for the lower hulls like the original Asiatam hulls with metal suspension. This is the way I always preffer to go. Some added weight for realism and reliability but not so much as to compromise performance. Remember the heavier it is the harder it is to keep it going when you are battling.