PLease be carefull with comments like that. There is not a lot of evidence for the use of IFT or ES and very little that actually looks at different protocols.
Why would you want to stimulate pain fibres in the pelvic floor?? Stimulating the bladder smooth muscles may cause a contraction of these: causing empyting. ES and IFT are good as an augmentation to learning how to conttract the PF but still requires a full assessment. The pelvic floor needs to be worked dynamically and in conjunction with the rest of the core muscles. Stims is not going to teach that.