tl;dr - what is the likelihood of my getting my bike on a weekday mid-morning train from Portsmouth to Brighton?
I'm planning another cycling tour in France in June and want to use the Newhaven - Dieppe ferry crossing. I *could* cycle from home (Bristol) to Newhaven but, as time is limited and I'd rather spend it in France, I'd prefer to save a day and use the train.
I've used the Bristol > Portsmouth service several times in recent years with a reserved bike space and never had a problem, so my preferred option is Bristol > Portsmouth then Portsmouth > Brighton (then a short ride to Newhaven). But I don't fancy arriving in Portsmouth to find a huge queue of people trying to get bikes into the first-come, first-served spaces on the Brighton train. The same problem applies to alternative routes via London or Gatwick - first leg ok with GWR, but no bike reservations possible for the 2nd leg.
So - has anybody taken a bike on the Portsmouth > Brighton mid-week? Did you have any difficulty finding a bike space, given that Southern Railways don't do bike reservations?