@wakabayashi, thanks for your input!
Blog-wise - we don't run one, I believe we rank on organic searches good enough. We have a brand keyword in our domain that drags us up quite nice.
I've always tried to make a better site from customer perspective - quicker delivery, more product options (as far as budget for stock allows!), faster website, clearer messages on it. And I believe it helps.
Probably that this brand is 'premium' despite 'the must for serious sport' is slowing us down. Also Decathlon's 8 Euro balls don't help a lot but who can compete with them.
Regarding wishlist - I ran it couple of years back and nobody used it in any of my 3 shops and I removed it altogther.
Of course we offer phone support, our contacts are on the very top row - we offer consultations and we do take orders by phone.
Mobile-wise I'm using Warehouse and I believe it's quite optimised. Probably I have to play arround with modules and hide few of them to optimise the product pages on mobile further.