There lies the problem mark - after decent weather - when do we get that I believe the silsden to leeds stretch is quite well surfaced isn't it, whereas greenberfield lock to silsden is like a field. Don't get me wrong i too struggle on hills but am getting there slowly.
We came off maybe 2 miles before Silsden to avoid the mud, used another cycle route that goes through the canal side farm to the town centre. That short stretch is usually the only bad bit between Leeds & Skipton IMO. Generally the towpath dries and drains quickly, you can have long term puddles but with solid surroundings.
A good hill work out is the Bingley 5 rise, the first time I got up, but threw up! Now, I sail up it sat down................