I have the Kuryakyn switchblades. What i find, and of course YMMV, is that the pegs are great to cure the exact problem you describe. Funny thing is tho, i don't even use the extended blades because they feel better w/o them. They make some other models w/o blades, but the switchblades even w/o the extenders seem to have the biggest contact area. Tho the duallys seem to be almost as big, so maybe thats a better option and they're cheaper. They look great too. you do have to get the triumph adapters tho. Total cost is about $100 and up depending where you get them.
I found the cheapest price at Oneida suzuki......
Duallys
Switchblades(choose the one with no mounts, #4446)
Triumph adapters
I think i may be responsible for that suzuki dealer carrying triumph adapters because they didn't have them when i got mine and they had to order them for me. Then i posted that this place has them the cheapest at the BA forum and i think a lot of people then got them there and when the suz dealer saw they were getting a lot of orders for triumph adapters they began stocking them.