ancient runner, my instinct would be to go for a higher dose of Femoston and see how that works. From what you have said, it sounds like you need more oestrogen and your current dose is quite low. When I was on Angeliq (1mg oestrogen) I hardly noticed any difference and might as well have not been using HRT.
In theory, 2 pumps of gel is the equivalent is a 50mcg patch or 1mg tablet but in my experience, the reality is very, very different and the gel delivers the oestrogen far better. So personally, I prefer Oestrogel and nothing else I have tried has ever come close. I now split the dose by 12 hours to keep an even level of oestrogen and I also split the location of the gel. Since using one pump per day on inner, upper thighs, I have noticed that I no longer have any itching, burning, bladder or other problems down below - it really is a massive improvement.
It might not work for everyone but definitely worth a try if you are a gel user.