Very true charlie, I have both. The pro staff is miles ahead and not prone to whiteout like MTC
I agree with the above, I'd suggest the MTC scopes are ok for rimfire and air rifles but I wouldn't put one on my centrefire rifle. I had the MTC Viper on my HW100KT and it also suffered with 'white-out' in certain lighting conditions, namely at dusk when the sun is low - usually when you need them most!
If you can afford it, stretch the budget a bit and buy something better