Thank you kindly Rhys, must agree it is essential to try and see what suits one personally. Just trying to see if there are any issues which I might not grasp up front.
I just know that I shall be more comfortable (and thus confident) with less weight up top on the TX200 for balance / centre of gravity with my hold discipline.
Having said that range finding standing with the Bushnell looks like it could be fun.
Really appreciate the feedback, need to try and decide as I understand the 4200 Bushnell is now discontinued in favour of the new 4500 side parallax (only down to 25 yds I believe).