3 days is not a great idea. That would increase the cost for everyone.
the original reason for not having 6U (I believe) was that most who have been in the sport for along time believe that is too young to put those kids under that pressure. 95% of those kids will not be wrestling when they are in HS. Granted, the 5% who do will be studs. The issue is we all think our kid is one of the 5%. Most pushing for 6u state are parents caught up in the moment. As a parent and a coach I have seen both sides. Those not as emotionally connected are generally against it as proven by the state vote each year. We have seen it too many times.
I offer this honest opinion. This is not meant to offend anyone just to give my perspective. To be completly honest most kids that play at 6u, or just start later, get more serious at 8u and then jump in at 10U or even 12U will be far ahead of the 6U phemoms. Everyone has their own examples, but my son wrestled only to play at 5 and 6 in a very few tournaments. At 7 wrestled some open tournaments. By 8 was turned loose and was state runner-up and by 9 was national champion, kicking the hell out of all those 6u studs. Some would agrue that I even started him seriously too young and others that get serious at 10-12 will pound him by HS. Time will tell. The very high odds are however that if you get your wishes and are allowed to put 6u's in that environment, you will regret it in 3-4 years. Some will thrive. Most will not.
The truth is none of us know the perfect answer. It's different for each kid. It's fine balance between starting them seriously too early and the sport losing it's luster, or starting them too late and they can't catch up. The odds say however that 6u is not the building blocks for HS champions. That occurs somewhere about 10-12 then is fine tuned at 13-14 then you deliver them to HS ready to compete at a very high level.
If I had to do over again I would not start my son until he was 8 or 9 and put that same time alot of people put into hauling that 6 year old and put that into summer wrestling and hauling them to Tulsa and other top competition when they can quickly grasp it between 10-13.
I also believe however that if enough people want it, even though I don't maybe agree with it, 6U should be put in at state. That's what are country is based on, if the majority wants it right or wrong...it should find a way.
Just my opinion,
SlamBam