I think the pegs are a little slimey as well.
I have been thinking of drilling and tapping holes in the foot pegs and inserting threaded track spikes.
They come in bags of 100 for 8.95.
I'm thinking the 1/4 inch spikes would just stick up above the normal groves about an 1/8 of an inch.
I plan to get a spike wrench as well.
I don't think they are as likely to back out and they should be plenty durable.