Thanks for the support.
About MH conversion I don't know. It was always gonna be HPS for flower and then I stumbled over this LE in the grow shop that was plug-n-play with my cooltube so I got it to try out.

Now after some further research it seems HPS is better all the way so I will change. However, if I had a 250 LE it would be doubtful if it had been worth to change.
A MH would be good for sure but then again I could just as well go with HPS. A HPS gives as much light (and more) so the only reason for MH over HPS in my book would be if you could save money by using them and I just cant see that as they need high wattage to perform just as a HPS.
So for me it is either a high performance LE for vegg or HPS all the way.

About my excel sheet:
Does it hold all information you guys would like on a day to day basis or should I add something?
This is my first grow and I want a diary I can work with for many growths so before this is over I want a template that is close to complete and that dont need any major changes so I can collect and compare data from earlier grows in an easy way.

I was thinking about saving each grow in a folder with a completed excel sheet and all pictures (dated to show progress in different stages).
After a while these folders might be valuable to find out if something new I try out is good or bad compared to what I have done before. Made accessible to the community as large they also might make life easier for first time growers in the future, as I am now.
I don't know, I guess I just like numbers and organizing stuff. :P

Puffzter

ps, I also love writing a lot, snap me on my noose if it becomes too much guys