a fsiq of 144 on a Wisc is one point short of DYS qualication so saying somewhere in the MG to HG no mans land is underestimating him. But letter reversals are normal at 6.5 and a lot of the other things can be attributed to a system of inventive spelling and using picture, first and last letters and context to work out words. When it comes down to it though you have to trust your gut.