of that this home had the shingles put on wrong and water got in behind and down the facia along the soffit down the garage wall froze broke the brick and morter and the block foundation wall bigtime.
To stall for a bit last year I stuffed in some home depot eve starter or drip edge. WHen I viewed it working 20 percent of the water went down off the bottom then down the facia and behind the eve.
I took pliers and bent it out at the bottom edge, it looked like crap but all the water went into the eve.
This drip or starter I bought is rake edge at the bottom. I dont see putting the gutter under the drip edge completely with the slope it will have if I tried to cram it way up under the drip the screws would end up running into the rake edge at some point and also the rake edge would be in the way of the eve mounting brackets in some places
I would never buy that drip edge from the home depot weather the eve is supposed to be under it or not. If the eve is under below the drip edge rather than in behind it the screws will not have to perforate it all as well, not sure about the end result but seems some water can wick in there once a screw goes through both of them.
I saw it go from working to not working by bending the bottom edge so I made sure I found a drip edge with a rake at the bottom for the home now.
Also the guys here have stated the shingles should overhang the drip edge by 1/2" if i remember correct, think the shingle master guide said 1/4-1/2 but have to check that so dont quote me on that. It has been stated I just forget.