If you have one of those pocket blow torches (they run on lighter fuel) I would gentle heat the stud the expansion should be enough to free it . It may have bonded itself through the use of different metals or it may have some locktight on the thread a title application of heat from a fine flame can often free locked nuts or screws . Stainless screws in aluminium masts are a favourite often they are painted over as well you can alma here the fused are crack free when this is done it saves the heads of fastenings or the threaded part from shearing . If you can get your hands on one it will be worth a try .
When you replace it use something like Tuffgel or some sort of stuff between the two metals.
Well I tried… I ended up rounding off the screw and dinging up the thumb stud but its no biggie. I will send it back to BM at some point to have it fixed. That said, I did manage to clamp it down solid right up against the thumb stud and it was less than a degree off so I’m happy.
With that said with it being mounted so far back would the bevel be an issue? The bevel will be about 3 times the size as the base at this clamp location.
