The frame so far is starting to get stronger, but it will still be wobbly until we get the wooden air tub in underneath. By then it should be rock solid.
We are going to be putting beams underneath the main board to help stop the sag and give it more strength during play. Drilling all the holes is making it a bit more floppy.
But yes, the hole drilling process is long and laborious but it has to be done.
We're using double sided tape to fit the pipes together, it's creating a nice strong seal. Stronger than you'd think actually.
More coming soon. For now I shall leave you with some pictures...