Ok , finally the Whit it�s into my bag ! Or it will be better to say it will be... in a couple of Months!!
It will arrive with open sights , and I wonder which rear and front sights will be the best .  
People talk about Dr Goodwin..or may be one of the Dixie catalog , but... which one ? And for the front sight?
Thank�s one more time

Well , I have understood you need more data in order to advise...
First of all , as I�ve said in other post , we only shot 50 and 100 mts ( very eventually 200 mts ) over here , so , windage adjustements may be unnecessary... or only to learn how to do it for the future ( I�m planning to organize a MLLR shotting  over here , Madrid- Spain during next year...).
Adjustable aperture for the rear sight? If I must be honest , I don�t know what is this for... May be necessary for 100 mts range ?
I think I would need a rear and front sight for 100 mts able to serve for more...in the future.
David , will be try your patience if I request some photos or diagrams showing what kind of targets you use in 600 and 1000 yards competitions , and what scoring system you utilize ?
I hope I�m not becaming a nightmare !!!  
Thank you very much indeed

Really useful , thanks one more time David

Another problem with that sight on a ML like the Whit is that you will need an elevated front sight just to be able to hit at 100 - i.e. the front sight will have to be mounted on a tall block.  This is one of the reasons the Dr. Goodwin is so popular on these rifles:  It can be adjusted low enough down with a standard-size front sight.  And yes, I do have an acquaintance who also complains about his Pedersoli soule sight being a pain you-know-where to adjust for windage...