I was told sowhere that H / G s formulas are based for roses (they only made rose nutes at one point I believe) so that the canna stuff mmight be taylored better to our purpose.
One the other hand the guy also said that the H&G Additives are top notch and very hihgly...
are you going to do something like og jam x Jacks CLeaner bx1 in future, i read something about a jc male of yours i might me mistaking...
plants look outstanding by the way (of course)