By the time I came to do this job my glue had also partially cured, so I checked with SB as to whether I could use a tube of Sikaflex 291i I already had in the garage. They confirmed that this would be suitable. In the end I found that there was just enough un-cured glue in the middle of SB's bag and I cut if open to extract that (and miraculously didn't get in too much of a mess!). But 291i is fine and I bought a small tube of that for other jobs for about £7 off eBay.
I found with the 295 that it was fairly thick, more so than the 291i, and didn't squeeze out when the plate was clamped to the mast so be careful not to use too much. I also found that the plate didn't have quite the same diameter as the mast so good clamps are required to bend it to the mast's shape until the glue has set. Narrow ratchet straps worked for me.
Finally, SB sent me a drill bit to use with their screws but I found it too small. The strengthening plate is very hard and the 3mm (I think, from memory) bit made too small a pilot hole. In the end I had to use a 4mm bit to avoid having to use so much force as to damage the screw heads. The modification has now had a few day's testing in conditions up to beating in a F6 and it has survived well!
