
I still did not try the sledgehammer it is fat too nice lock for that.
But here are a few points: This is a very solid padlock but not ridiculously oversized.
Another pro is that it's panted all black so it's not flashy. Abloy padlock are very beautiful but I can barely think of anything padlock more conspicuous and flashy than a big fat chromed shiny Abloy lock.
In comparison the Abus granit is more "stay in the shadow but still do my job" kind of "guy". It's black, it's matt and looks fairly mean.
I agree an S&G Enviro would be really intimidating, a pity it does not fit.

The 37/55 I have has a shackle thickness of 11mm.