It is straightforward and no mods are needed
Steve

Still no update on when advance timing will be available.

I am due for the 500 hr mag overhaul and since my mags would now have a total of 1000 hrs I decided to replace them with new rather than another rebuild. Cost is roughly the same so I ordered the Surefly and a new Slick 4347. Rather than remove the shower of sparks I am just replacing my left mag wi...

I agree and used it on my rear windows. Seems to be working fine and no ill effects

I use some cheap Walmart screens but after a 7000 mile trip last summer around the USA I found crazing on my canopy where the suction cups were used. So I changed to "slap-on" style. Just a head's up!

I have a 2005 DA40-180 - I know it's behind the panel, but where? Is there an easy way to get to it?

For me it was a no brainer. I am do for Mag overhauls in 47 hrs. I have a friend who installed one in his Super Cub and said it works well and he has seen slightly less fuel consumption. He is using the Advanced timing feature.

That I had won the Lottery!

Will do! They are back ordered with no ship date as yet.

I to thought I ran out of upgrades but decided to go with SureFly electronic ignition and replace my left Mag. Lycoming just announced their own private labeled version (also from Surefly). That will be one less Mag I have to overhaul. Benefit is faster starts and less fuel consumption.