upsweep and backsweep for mtb handlebars Characteristics of the following bars for MTB are:

• 780mm wide
• 30mm rise
• 5˚ up-sweep 
• 7˚ back-sweep




I know what effects do the width and rise have on the feel and riding. But what about upsweep and backsweep?

For the last 2 years I've been using bars with 3x9 sweep (compared to the above's 5x7). What difference would it make?
From my experience upsweep make you pull easier for drops, manuals and bunny hops, but the other side of the medal is shoulder width. The wider your shoulders, the less comfortable will be upsweeped bars (you will feel your hands bent outwards). In fact when chosing BMX bars every degree of upsweep considered as something about a quoter inch of rise (from the ease of pulling perspective).