I may try one of their cb400F seats, mine has a rusty pan.
cool, I just bought one from there myself, the stock style 400f seat. $110 or 120, I bought a side cover and gasket set to bring the price over 200 for free shipping. The seat looks great, putting it on I couldn't close it enough to get the 2nd latch to catch on the seat pin to grab. I loosened the hinges and kept trying push it down. Finally I gave up thinking it'd have to be broke in or go off a double jump to help it. Then, weeks later I look at the rear rubber pad, it's 3 times the size my other 2 are. So I was going to cut it thinking no way I'd get the old ones out to put in it, that's why I tried. I first pulled the old one out and it came out ok, so the new one it didn't matter if it broke, good thing I didn't cut it, it has to big holes to save material right under the top skin. Now it works fine.
As far as durability, it'd have much farther future hope if it was show bike that was never ridden or in the sun. The material is what I paid for, it'd ward off a fingernail poke, anything more will go through it. Hope it's got some A1 UV protection in it, lol.
The side cover was 45, and has stress cracks where the mold of flowing plastic met each other, all around where the factory plates first crack. I mentioned it to 4in1, they checked and said all their inventory were the same bearing the same hairline creases and I could send it back, he told me that they are harder or more durable than factory material for side plates and never has has a return or complaint. My ideas on that were excellent in customer service, I'll go ahead and use it, but first I'll make a cast out of it from plaster of parris wrap for broken bones. Maybe double it one just in case it wants to fly off in the diamond lane on the 405 freeway during rush hour.
4into1 gets a 10 for ratings.