I agree, but I love doing things myself. I’ve always got a price on having a job done. Then bought the tools to do it myself. Cost me about the same as having it done. But I end up with the tools to use later on other jobs. That’s how I built my tool collection.
I think the rolled flare is better. If 5200 is used, it will do a job like an oring. But will bond to the hull and the underside of the flare. I shouldn’t have said the other tool won’t work. It will but will form a flat flare. that will push the sealant out. Just like gluing to boards together. Put just the right amount of pressure and you get a good bonded joint. Put to much pressure and you push out the glue. Leaving you with a weak joint. Different flares are used to do different jobs. Using the right flare, is the best way. Just like brake line flares. You wouldn’t use a single flare but a double flare. Both look the same, but work differently.
Also I don’t think I’m always right. Hell I’ve been wrong a lot in my life
. But I like to think I’ve learned from all the times I’ve been wrong.
That also what’s great about forums like this one. You my not have to go through a long learning carve. You can get the info you need, from people that have already gone through that learning carve.