Never had any mechanical problems with around 40,000 km on both , but I rebuilt the B44 from the crank up with parts I knew would work, easier to do than build it stock!
But engine technology has improved in the past 50 years, I would expect the Hima to go further before a major strip down.
The B44 is essentially a Moto Cross motor in a Observed trials frame, with the Heavyweight road bikes forks wheels and brakes.
Both brakes are more powerful than the Himas, but a well set up drum is "self servo" and is not progressive and it is all too easy to lock the wheel.
The one way damped forks on the 285lb bike have the same springs as the 520 lb Trident but work surprisingly well with the overly stiff Hagons on the rear.
Like the Hima , works surprisingly well for basic parts and is just about satisfactory.
Both have sufficient power for their intended use, neither are performance bikes, but when you drop down a gear for a quick overtake the Victor just about pulls your arms out of their sockets-----!
Dont do much real off road Trials type riding, so not much need to stand on the pegs, but as you would expect on a trials frame the B44 footpegs are at the balance point, front to rear, so it would probably be better if you ever need to get up on the pegs.
Biggest difference is the weight,, you do notice the 140 lb difference, when you park the Victor you almost worry that someone will pick it up and run away with it under his arm!