This will be interesting to follow, as neighbour has BX23xx with blower ( no loader version), doesn't have any weight in back. heck he's only got 3 hrs on 'winter duty'...due to lack of snow here.
Snowblowing is easier on the tractor than blade as blower does the work. I can see maybe 200-400# on the back for traction. Having 4WD will really help. Curious as to HOW the weight is added ! Ideally you'd like enough but not too much. Too much puts uneccessary stress on the machine and wastes fuel.
I just use the bucket for 'snow detail' so BH is on.