If you could design your own PCP...

I don't know much about designing a PCP, but I can say I'm not big on shrouds or barrel bands. Give me a proper barrel (not a liner or straw barrel) with decent open sights, that's solidly secured (threaded) to a steel receiver. While manufacturers seem to be going towards side levers, I'd honestly prefer a bolt. I'll take a transfer port choke screw (like on Marauder) and an adjustable hammer spring, no regulator, no regulator problems. Synthetic stock, but solid... As in no hollow cavities. Don't care if it's a few pounds heavier. Make it in .22cal capable of making 32-35fpe. I don't need more than that from an airgun.