I did not realize that it was that hard to dissolve, sounds like form, the only time I used form myself I was gritty constantly. I have never used td 11-oxo, the only td's I used have been test base, form and tren pellets. the test and tren I used straight dmso if I remember right and that was harsh, I remember smoke coming off my skin and under black lights you could see where it was applied, I do not recommend, I was young and dumb.
To be honest, if this was me, I would scrap the transdermal idea and use it orally. Somewhere there has risen a myth of transdermal 11-oxo being great. On another forum PA stated he thought it was maybe twice as powerful mg for mg, so 200 mgs would yield around same gains as 400-500 mgs orally (somewhere people have begun believing this would equate to about a gram orally, or people think about spot fat loss, imho neither of which is true), for the hassle and the cost not a good return. Also, to high dose with transdermal you have limiting factor of obvious solubility and then application area, whereas you dont have those with the caps. I dont think $$ you would come out much ahead. For cort reduction PA said that some of the metablites of 11-oxo made in the liver are also strong cort reducers. To sum this up, orally is the best way to go. I have seen old logs on td 11-oxo, and never saw anything much different than oral and dosage used was anywhere from 100-300mgs daily. Bulk 11-oxo is great product, glad it is around, but think people will be disappointed at transdermal use, you may use less 11-oxo, but when you factor in cost of carriers, etc, oral is way to go.
I dont like transdermals except for those rare things where oral absorption is horrendously low (11-oxo does not really fit this), and/or pinning is too painful (1-test, bold prop/ace, even test base for some people). These are just my opinions, I could be wrong, as I have never used it transdermally.