I doubt he'd have developed his game as well under radford and last though

Only player that's missed more is Brough, he's missed 34 and Sneyd has missed 32.

Indeed but Brough kicked 93 compared to Sneyd's 69.

Sneyd's success rate in SL this year is 68.3%, last year he kicked 76.7%.

In 2014 we had a number of goalkickers of course, the main two being Rankin (78.6%) and Crooks (71.4%). In 2013 Danny Tickle had an 83.3% success rate.

Sneyd has to improve on 68%, it's not good enough.

Yes and he missed them on the wrong side of the pitch for a right footer. Sneyd should have carried on taking them from that side because he is a left footer maybe he would have got better with each attempt. Rankin should have taken the kicks on the left hand side.
Not getting my point across very well using that match as an example. Sneyd has missed most touch line kicks on the left hand side of the pitch. I've always felt with Rankin in the side who is a good goal kicker should have been taking the touch line kicks from that side of the pitch.
We all knew when Tickle left we would miss his goal kicking and it has cost us a few points. How many more matches would we have won with a kicker of his ability.

how many times do we turn down kickable penalties and take a tap.... as was noted brough missed 2 more than sneyd but kicked 24 more thats an extra 26 kicks at goal + the ones he missed.
whenever leeds get awarded kickable penalties (unless they are a long way behind ) sinfield bangs it over,this season we have lost games by a few points when a kick or two might have made the opposition think twice