I must admit that hand laid turnouts appeal to me, at least in theory. I have thought about them, on and off, for a long time now.
This thread prompted me to look a little further into the whole issue of hand laid turnouts. I went to the Fast Tracks web site and watched the introductory video, then cruised the web site looking at the different topics and the different products.
It strikes me that there are three principal considerations regarding hand laid turnouts, in this instance, Fast Tracks - - - cost, time, and skill.
In terms of cost, as already pointed out, the start up costs are pretty high. So, you better be prepared to build a lot of turnouts to achieve a break even cost with the purchase of commercially available turnouts. As has also been pointed out, an expensive template is required for each type of turnout, straight, curved, wye, 3-way, double slip, whatever. Moreover, if you need different size turnouts such as a #8 curved turnout with two different sets of radii for inner and outer curves, then you need two (expensive) different templates. The templates are not adjustable.
In terms of time, the hand laid turnout price can be time consuming,. The web site suggests 4 hours for the first turnout, then scaling down the required time to maybe 1 or 1 1/2 hours for subsequent turnouts. I would be willing to bet that it would take a lot longer than that unless you really got practiced at what you were doing.
In terms of skill, the two most significant skills are filing and soldering. Neither one of these skills is hard to achieve, at least in a basic sense. But filing of point rails, in particular, requires some perfected skill level, and proper soldering techniques on rail joining has to take a fair amount of time to master.
Fast Tracks does sell a lot of different tools to facilitate hand laying track. Even though this adds to the cost, if I were going to hand lay track, I would ha