Well,
this is a most subjective topic, a model that sails and is a competition model,,,,,,,,, unfortunately you cannot have both, a model that is up to competiton standard is a very different model than one that is sailed on regular intervals, the amount of work and detail that a modeller puts in to a competition model is far more than a sailing model.
Just to get everthing scale will stop a model from sailing as the detail is so fine that it will not stand up to the rigours of sailing, just due to the scale of things.
I enter competitions and then after a few yrs I use the models as they are intended, they are all radio controlled from the beginning but exhibited first, as even a minor scratch is marked down in a competition, yet doesn't matter for sailing and so on and so forth.
Its like a concours catagory in classic cars, you are exhibiting a model as perfect as you the modeller can get it , paint, scale, detail, build quality etc.
Thats what keeps the standard high...something to aim at and aspire to.
It is a different world competition modelling to a regular sailing model, it has to be or the standard will drop and so will the models on view.
I stand there in awe sometimes at the workmanship of some modellers I see, but it just inspires me to try harder next time, not to get the standard lowered, but to try and get me better at what I do.
A competition model can take several yrs to complete, just ask how long was your last build ????????? its all about quality of workmanship and expertise and skill.
Just my Humble opinion.
Regards to all.
BAH HUMBUG !
Sub.

Just my humble opinion.