Use WEP only in emergencies and only as long as needed and you'll be fine. With your other post, I'm thinking you just want to be able to keep the P key mashed on all the time.
I will use mine in a zoom climb, in a intercept climb staggered at usually 3-4K intervals depending on the planes climb tables, and maybe to get up to a decent speed if I've bled a lot of E, then the thing goes off.
If you're not using it for more than 30 seconds to a minute at a time, you never have to worry.
