Dear Soterix tDCS users.

I run pilot tDCS study with 1mA and 2mA, with ring-shaped ag-agcl electrodes andSsigna gels following Minhas et al., (2010).

My participants reported significant pain during whole stimulation.

I tried to test holders for tDCS made by Soterix, but they only sell the holders to their customers. 

If you currently use Soterix device, is it helpful to use hd holder to relief pain?