Hi, I couldn't find the Stiga Azalea's headsize, but when playing it, it really seems like a 157 x 150 mm compared to noticeably larger blades like the Korbel JP, Harimoto, Liu Shiwen ZLF, all 158 x 152 mm which I'm getting quite used to.
I'd write Stiga an email and ask if you really want to...