RTCs have spots on their cranial, not the body.
It is unreasonable to expect any hybrid to display all the features of both parents combined.
-- For instance, the hybrid does not have the famous striking white lateral stripe of the RTC but has a dark top and a light bottom like in a TSN.
-- The fin sizes and body proportions are mostly midway between the two but a bit closer to the TSN.
-- The hybrid has little of the red in the finnage as do RTCs.
-- The temperament and behavior also appears as if a mean arithmetic between the parents.
-- It appears the incorporation of the RTC paternal genes disrupted the base colors and the stripe pattern of the fasciatum mother.
FF, you are right in your inkling that the hybrid looks overall closer to the maternal species, the TSN, which is fathomable, but it does not mean at all that it can be expected to have or should have the stripes.
I'd think that's all laymen like us could say here, more or less.
If anyone else provided more insight and/or showed me wrong, that be wonderful.