Sanjay
I have compared the EL 10X50 directly against the EL 10X42 for over 3 hours in total on 3 occasions at Lakeside Optics, where you can compare the binoculars outside for as long as you need to. Since then I have compared the 10X50 against the 10X42 in a hide while bird watching across water because someone using 10X42 wanted to compare them. (He was stunned by the 10X50 and preferred them to his 10X42 and this in very clear light). I have also compared the EL 10X50 against the EL 10X42 over the period between early evening and total darkness at my own home by borrowing a friend's 10X42. Let me assure you that the 10X50 is a better bino than the 10X42 and I have put my money where my mouth is.
All your friend has done is to confirm what you already knew and what many people on this forum have already said.
The only possible issues are the weight (158 gms extra) and the the price (in my case £1,899 versus £1,785 before the current discounts on the "old" range. I paid £1,780 for the EL 10X50 after the discount). You have to decide how important these 2 factors are while balancing them against an improved performance.
Sanjay. To be totally honest, you need to try both sets yourself and look at alternatives such as the Zeiss Victory SF. You can listen to people like me or your friend visiting Hamburg but I think that's is unwise to buy any set of binos without trying them yourself. In this thread, you only have to read HighNorth's comments on July 20th to see what I mean:
"I got the Swarovski EL SV 10x50 that I ordered last Friday, and I have had good use of it over the weekend.
I have to say that it is a magnificent binocular, but unfortunately, not for me personally...
I did not get along with the ergonomics of the bin, especially the large tumb indents (that seem dimentioned for a Yeti!), and it wasn't as easy to hold and focus as my 8x42 SF. Optically, the SF also seemed a little bit brighter, and had a bit better CA correction to my eyes. AFOV seemed about equal. Glare restistance was about the same. Build quality is of course better on the Swaro....
Although I can see why many people like this bin (and rightly so), I just don't think it is enough of an improvement on my SF to justify the investment.
Basically, it's just a bigger, brighter version of my 8x32 SV EL with better glare resistance and a bit more shake...
This bin will be going back to the dealer for a refund".
If you cannot test the EL 10X50 against the EL 10X42 and other competitors then, in my opinion, take a punt on the 10X50.
Good luck with your continuing deliberations.
Rolstone