I've been experimenting with various versions of homemade Rev handles. Trying to keep the weight down whilst extending the length (
) has been an issue. Best version to date uses 8mm diameter, 1mm wall thickness, stainless steel tubing. This is a bit thinner than the Rev tube but seems to work fine. You can get it online from "metalsontheweb".
Have now bought some Hypalon high density foam handles from a DIY fishing rod company. The external diameter is the same as the standard Rev foam but the internal diameter is 12mm. Packed out the difference by winding masking tape onto the steel tubing and then securing with Araldite glue. Apparently this is the way that they are glued onto fishing rod blanks.
End result is a handle that's pretty much the same weight as the Rev handles but has the extra 2-3 inches length that I wanted to fly with. Best give them a workout now before Eurocup!!