3-5 mins to get a gps lock? mine only took about the the first time I ever used it. Now it is seconds.
I've had similar issues to what you describe with my old 110 though, it is just for some reason the watch has decided it has a GPS lock when it doesn't. These days I pretty much always wait a bit longer after any watch says it has a lock before setting of just to give it time to make sure.
I'm loving the 220 at the moment, only issue I had was originally trying to connect it to a PC which just didn't work the first 20 times I tried! but I don't even use it with a PC any more got the garmin connect app on my phone which sends my personalised workouts to my watch and receives workouts from the watch.
Got my first ever 20 miler done. It was far from pleasant and involved a couple of walking stints towards the end. Had run out out of water by about mile 16 which really didn't help as that also coincided with it getting even warmer!
Hope today's gone well booktrunk, think its a little cooler today but still too warm for your type of insanity...