Only a total newbie would reply to 1...d5 with 2.e5, and another newbie would probably counter-lemon the opponent with 2...d4.
2.e5 Bf5 or 2...c5 is already absolutely comfortable for black, maybe even slightly better for him.
Are you sure you know the concepts pretty well?
Do NOT plug any opening, to any engine. Engines mishandle the opening and the endgame quite a lot, and in any case they do not offer substantial info.
As for the second one, the main problem is that black can take on e4, when you have to play a rather odd Caro Kann where black has completely omitted ...c6, which can only be good for him.
Hello, today I would like to talk about playing the KIA against Scandianavian defense. I know the concepts pretty well because I regularly play Scandianavian against 1. e4 and King's Indian defense against any other openings other than 1. e4. I've played around 3500 live blitz atm, and as a 1. e4 player, I face 1... d5 very often. So here are my ideas.
This one is like the KIA against the french but Black is up by a move because of the lack of 1...e6.
Another idea I have is...
I plugged those openings on Fritz 11 (haha I don't understand how to use those Chess engines like rybka or something) and it tells me Black has slight advantage (like around -0.50 ish). There are also cases where black might not push d4 for their 2nd move as well. I would like to see if it is playable against most of the cases.
Thanks in advance, and happy new year.