thanks for the advice, it will save me a lot of mistakes.
I love it . Its light, well balanced and a good length that fits my cabinet unlike the hushpowers. Its also quiet enough to shoot from the kitchen door or in a field next to horses and they don't notice. I am planning on doing sound level and pattern comparisons between the two.
for the price i think its well made, I keep the bolt well oiled and once you get the action right it slides in and out OK (a bit like changing gears on old cars, once you get it right you cant underdstand why you had problems at the start).