I've only had to use a weight once, when pointing at Mars low in the sky with the ES 4.5mm EP. I don't yet have any really heavy eyepieces. I do cringe when I mount the bar that holds the weights, as its inside threads are right above the edge of the primary mirror. No mistakes permitted when you're threading on the inside washer and nut! (A mirror cover that sits down right at the level of the adjustment bolts, just in case, would be a good idea.)
As one is sitting beside the scope, moving it about, the weight bar makes a great bottom handle. I generally have my left hand there, and my right holding the top edge of the UTA.
I replaced the nut and washer that holds the counterweight bar with a M10 screw on nob.
Something like this...
And I kept the cardboard disk that the scope shipped with, and I lay it on the mirror when assembling the scope.