I don't use them. The Tiger 1050 puts the rider in the proper riding position so that those sorts of things aren't necessary. The Thunderbird has slightly forward controls. I say slightly because while they're definitely not mid-mounts, they're nowhere near as far forward as Harley forward controls. They're actually perfect for me. I use 3 different foot placements (placement on the pegs) with them: hook them with heel, heel standing on them, and when I really want to stretch out for a bit, I rest my achilles on top of the pegs. Resting the achilles sounds like it'd be uncomfortable, but it's not. I wear over the ankle boots and they're padded in that area so it's actually quite comfortable. I'll also occasionally drop the passenger pegs and rest my feet on them for a bit when I'm on a long trip. I find all of these things work better for me than highway pegs.
As a side benefit, my bikes retain their good looks. Nothing detracts from the look of a bike (except a touring type bike) more than those ugly ass dresser bars sticking out from the sides of the bike.