I flew into Shawbury recently but was on company business... I don’t think the cuppa approach will work but if you do have a reason to visit then there is no problem but most stations require 24ppr... Shawbury offered me a PAR with vectors to finals and I know most none station based a/c will normally be given a PAR.. Ground handling was superb but watch out for landing charges... the standard charge it think is around £50 depending on which station. I don't think they are all this expensive... very friendly and professional service...