I use double-bowed ones, they are less hard to press. I also use dagging shears more than the proper clipping shears, as I find it is not so hard on my wrists (Carpal Tunnel syndrome). Fortunately this year we managed to get all of them in, and all got done by the shearer last week. But I realy do like hand clipping (using my own methods...)
Just out of interest - have you got any pictures of your Gotland x Shetlands? I have mated a Gotland gimmer to my Shetland tup, unfortunately she must have slipped her lamb(s), as despite a large blue bum she did not produce any. What's the fleece like?