As you say you climb in the rain a lot, and a rope bridge is not really all that important to you, you would do well to check out the Petzl Avaos. I had the model they made before the Avao(same saddle different name?) and it was just an excellent saddle, as all the Petzl saddles are.
For 260.00 for the base model, 290.00 odd for the fast buckles which are nice but not needed unless you take your saddle off between trees and the Avaos fit like a glovew, I used to leave it on all day. Ive never had a problem with the adjustable buckles, they tighten up just fine time after time They are super comfy, basic utilitarian saddles that work very well and will dry throughout the day if the sun happpens to make an appearance. I have since moved on to a SRT Sequioa, a very nice saddle as well, if a little more pricey(worth every penny).
Good luck with your new saddle, and stay safe.
PS: as for the comments regarding what someone is willing to spend on a harness, why not just save it, the post is titled 'Need a new saddle on a budget' ?
Arent we all on budgets? Dont we all try to save money whenever and wherever possible.
Is a climbing saddle any different.
Not too me