I bonded my slider canopy with Sika in 2010. It went through some pretty severe thermal cycles just sitting in the hangar while I finished the plane, due to my location in the Sacramento Valley of northern California. Finally started flying in June, 2012. About 180 hours on the hobbs now, and have exposed the canopy to temperatures ranging from sub zero to 140+ F since then. So far, so good.
Being an engineer with some experience with urethane adhesives, I obsessed about some of the details. Prep is crucial follow Sika's procedures to the letter, using all the materials- cleaner, primer, etc. I made several test coupons, then tore them (or attempted to; I was not always successful) apart. Sika is good to about 300% strain, which is to say that a 1/16" thick bond line can be sheared up to 3/16". On an RV-8 with its long canopy that's conceivable, but a side by side RV isn't likely to see that even at a temperature extreme. The fact that the canopy is curved and far from rigid means that the entire thing will distort a bit, reducing the actual amount of shear due to thermal expansion/contraction. This is apparent in my canopy, as the fit is somewhat different on a very hot vs. very cold day.
To create the side joint, I copied the procedure described in
this thread. Note that the link to a picassa photo album in the first post is dead, but the one on a later page is good. On the side bow, I did what the OP of that thread did, as shown on this
photo from his picassa album. Rather than trimming the canopy to lie about 3/16" above the side bow per plans, I cut it closer- more like 1/16". The big fillet of Sika as shown on the photo link makes the joint very forgiving.
Additionally, rather than making the skirt out of aluminum per plans, I laid a one-piece skirt up with carbon/epoxy. The skirt is also bonded to the canopy and frame with 295UV. For "belt and suspenders" I also riveted the skirt to the side bows of the canopy frame per plans. There are no holes through the canopy however, other than the hole for the latch, on top.
So far, so good. No regrets. Feel free to PM me for pix if you think they might be helpful.