I used to have the 143 by 48.
The footstraps are offset to the heelside and that makes it feel like a 44cm wide board when you are edging.
Only when you flatten it off do you feel the benefits or disadvantages of the extra width.

Thanks guys! Next week I will buy XTR 143 x 48 after hearing it is the best choice.

Franz
All light wind boards are flatter in profile so they are more likely to spray you.
You'll never really jump high either as you are kiting in next to no wind.
140 for your weight, the 143 does feel the extra weight as the extra width is along the whole length.
Better option is to go for a skim board if the wind is light, way more fun than mowing the lawn underpowered on a TT. And way cheaper.

DRC