Hi!

I would be careful in compensating only by commission. This will give you the kind of sales reps you might not want. If you were to invest your time, would you not want to receive some kind of fixed fee for the invested time?

Also, by paying commission based, you are telling the sales guy that you don't know if the product will sell, but that you don't want to be the one risking the time invested.

I'd go for a mix.