If you don't like them, ditch them! However, I really don't see how toe clips are in any way easier. I always found them to be a pain in the ***. How on earth can you get into them starting up this 30% grade you mentioned?
My own experience: My first SPDs came on my previous MTB. They were lower-line Shimanos, and absolute death traps! I knew I would die with those, and was ready to go back to toe clips. DH & I replaced both of ours with some cheapie Nashbar ones, which were great. My current MTB came with Shimano M520 pedals, and they have been wonderful. ALWAYS there when I need them - I never have to hunt. Always pop right out when I have half and instant to think to do it. I did, however, break an ankle a year ago today sailing forward off the bike when it stopped on a dime and I didn't. No time to think - to even realize what was happening. It was a straight up & forward motion - I didn't have a chance. That was when I switched to the multi-directional cleats, and haven't had a problem since.
If you really have to be able to pull up AND wear street shoes, I'm not sure you have a lot of options. I suspect the combo-type aren't likely to be the upper-level pedal (just thinking of the night & day difference between my old pedal and my current ones).
Maybe what you REALLY need is to add a road bike to the stable!Then you could have good clipless on the MTB and whatever you need on the other bike.
I like my 520s well enough that I put them on my touring bike, and got some shoes that look more like normal sneakers (similar to what Irulan posted) that I can walk around in. I say get some good quality clipless pedals that you can use both ways (i.e. with shoes that will clip in, yet you can walk around in).



Then you could have good clipless on the MTB and whatever you need on the other bike.
Reply With Quote