Hi you need to make sure your feet are attached to the pedals either clipped in or by using toe clips and straps. If your feet come off while your pedaling they can go under the trike causing a nasty injury and possibly a 999 job to hospital.
I've swapped to SPDs since I got my trike and I also find them more of a faff to clip into than road pedals. It doesn't matter on a trike though as you clip in before moving and you don't need to unclip again till you get off. I could never get on with them on a road bike because of the fiddly clip in.
The brackets supplied with Performers are the worst part of the package and consequently I made my own replacements - using theirs as a pattern. I have made a few sets for other Performer owners too. As for mudguards I bought 2 pairs of 20" mudguards from Rutland Cycles. Nice Chromoplastic ones that were very cheap. I used both front mudguards and mounted them so that what would have been the front of the mudguard is at the back. I used the central mounting bracket to mount red reflectors on (having bent them to the right angle) The photo shows what mine look like and the strange flaps at the bottom, which I made from an old A4 file, dramatically reduce the amount of mud etc. that gets sprayed on my hands. My metal work skills are nowhere near as good as the person's who made your trike, so if you can locate him and get some from him do - but if you get really stuck send me a pm and I will try and sort some out for you. Have fun on your trike!
