Ratesetter rolling market changes

I guess the mechanism you choose might work. Unless your “holding money” is bounced in to longer time high interest loans (you can only go to 5% above the standard rate - in which case you will still have to pay to get out. Maybe the “stress testing” of the PF is to take on more risky loans in future (who knows. It’s Ratesetter’s business - not a cooperative - as they so readily pointed out in their recent announcement

so you may not even get the chance to cancel - even if you monitor the system like a hawk 24 hours a day and type very quickly. 
(And you could still possibly be defeated by the web interface going down for “regular maintenance” or perhaps just running very slowly). 

And of course these are only the current rules, the current fees, and the current market rates. Any of which can change - although you currently get 14 days warning of standard rate change. (The warning period itself could change). 

So you see, this is all a very dynamic potential environment. 

Giving Ratesetter the benefit of the doubt, I am sure they will attempt to keep the user experience as good as possible - maybe slightly better than before in the first instance. If market conditions remain good it might be a really good place to invest.

For my part, I am at the point of life where I need to begin reducing risks on my capital - even if I have to earn much less. I am undecided whether this change is good or bad. I shall be suspending investment or re-investment and begin disinvesting back to cash. I will wait out the period of change and see what happens before re-investing. I am sorry about sounding so negative, because I honestly want Ratesetter to succeed against the banking sector - to provide competition - as building societies used to do.