Last year I took a surf/kitesurf trip to Portugal and brought my surfboard, 5'11'' 34L, and paipo. I added straps to the paipo for a few flat water sessions and as an option in case I needed to jump close outs. The paipo made great protection for the surfboard in my bag. This was before I started foiling. Now I foil on the paipo but at 5'7" already feel it's a little too long.
Although a mini-to-micro Simmons or fish style grovel surfboard could be both short enough for foils and floaty enough for paddling, there still seems some sense in packing 2 boards if you have to pay (probably $100-150 each way
) for a coffin bag.
But a pocketboard, foil and a kite or two in a golf bag will save some money and hassle, if renting a surfboard is a good option. Depends on style and where you are traveling.
What I am curious about is a low volume pocket board/shorter paipo that is fun to ride with or without a foil. But more float than my normal paipo that almost sinks with foil on.
And possibly a 5'6"-5'10 paipo or Simmons outline surfboard with 35-40L for mellow surfing, light wind kitesurfing, and possible paddle in foiling.
A piece of foam in my backyard is contemplating becoming one of these...