more likely scenario this is the issue with fixed race nights guests are a lucky dip depending on who is or isnt riding that night

Good job no one is over reacting!    Exactly. 

Is that Ben's Kiwi cousin?....

Or alternatively, Birmingham are the only club not racing premiership speedway and no one wants to guest who fits / is in the country

So Lynn have known for a while no doubt that Cook won't be riding,and still come up with Lambert.You are right it's a lazy guest booking,it's just to easy to ask someone who is on speed dial at Lynn than to actually try and do some work to get someone in who may do a job.

Entirely my own decision is what my polish club has made me say !!!!