struggle to sit upright and got exhausted very quickly from the effort..This is probably a common problem for us older guys who get a bit top heavy when we hit middle age. I had the exact same issues when I started to rec climb, had to struggle to sit upright and got exhausted very quickly from the effort.. I can only tell you how I solved it. My current set up, either single or double rope, is with a SAKA (HAAS would also do) and a foot ascender so I don't have to put much strain on my arms. Then to stay upright, I bought a PMI chest roller and the neat chest harness that goes with it. I can climb almost hands-free with this arrangement, like climbing a ladder. When I get aloft, I can quickly unclip my line from the chest roller for moving around and limb walking. I have the double chest roller, which handles two lines, side by side, so it works with double rope too. What I do there, when on DdRT, is to float the hitch or mechanical up higher with the standing part of the line through the eye on my bridge and back up to the device, with a prussik on the standing part to advance the hitch or device. By moving the prussik up or down on the standing part, I can adjust the height of the hitch or device. Both parts of the line are thru the chest roller so I stay nice and upright just as when on SRT with the same setup. Hope this helps.
That sounds about right!! Thanks for your very much appreciated input!! I spent about 3 hours yesterday playing with the adjustments on my MB saddle and although it is not dialed in as they say, I have made improvements and can at least hang without holding the rope and tipping over backwards! Now maybe just some fine tuning and I can move onto climbing!!