I love the seat cover with a little extra underneath. I kinda disliked the stock TW seat set up, the way the seat curves forward makes you slide up front too far and you have to bend your arms like you're riding a cruiser, I would have thought the TW would of felt more like a standard which is my preferred position. The only solution was to sit all the way back, but I didn't like that very much.
I added the seat cover and threw a folded towel underneath to try to make the whole seat level, and it works great! I can comfortably sit back a little now and it feels like I'm finally riding a standard off-road bike instead of a cruiser. Much more fun! That added an inch or two though and for the first time I'm experiencing what it's like to NOT be able to flat foot a bike..(I'm 6' so 30-31 inch seat heights are flat footed)the first time I came to a stop after the mod I was like woah where'd the ground go...hehe.
Oh, and the seat is definitely more comfortable too. Before 30 minutes would kill me, now an hour+ is bearable. I'd still hate to ride a 200-300 Mi. trip on it, but it's not too bad for a dual purpose bike.