1: alot of mention has been made about the problems installing the kort nozzles is this still a issue ?
2: has the kit changed or been updated that anyone is aware of
3: i have never worked with a fibreglass hull before is there anything I should not do when working with that stuff
5: 6 or 12 volts is there a difference ?
I am currently building this kit, though it's actually turned into a kitbash to look rather different.
However ...
1 & 2. The korts used to be 2-part whitemetal castings which would have been fiddly. The more recent ones have a one piece glassfibre (or something like) moulding which needs very little work. It's a bit fiddly getting shafts, A-frames and nozzles all lined up, but it just needs a little care and patience.
3. The Model Slipway instructions are fairly good - just read carefully and use the glues recommended. The only problem I had was that the propshaft/rudder spacing in the instructions was a bit less than the markings moulded into the hull (about 5mm IIRC - 2.5 each side). I went with the hull markings, but with hindsight the instructions version might be better as my rudder posts and the operating arms were a bit close to the deck beams.
5. Yes, 50%, or 100%. Seriously, I really don't know if there is a right choice for this model. I have 12V from an SLA into geared motors but with what I've seen lately if I was starting fresh on the power I'd be maybe trying 7.2V NiMH into low kV brushless with direct drive. But I'm a bit of an experimenter