Same here... There is an advantage, only you don't benefit from the copper as much as you would with gas. But still, there is a perceptible difference.
If you don't mind about a yo-handle, consider the Hiromoto 190,
I have nothing against santokus but I wouldn't go with anything under 180 mm. A 165 is just a small utility knife, a 180 is more all round.
Is it for sale or a customers already?
Google site:kitchenknifeforums.com Takeda