On the subject of application. The two most important factors are site of application and surface area of application. In a paper published in the book "Transdermal Absorption of Dermatological Products", the percutaneous absorption of benzoic acid was measured at 11 different sites. From this it would appear optimal to apply trandermals to the postauricular/neck/clavicle region. (Please do not apply to the face or genitals. Those areas contain a lot of sensitive nerve-endings, and application at these areas may cause pain or discomfort.) The second factor regarding surface area we must consider is transdermal flux, which is measured in µg/cm²/hour, so the more square centimeters you spread your dose over, the more flux you'll achieve. Spread the transdermal as thinly and as broadly as possible for optimal results.
As addressed in the first post, it's likely optimal to apply it mid-day or pre-workout.
Agreed. You could run 125mg/d for 8 weeks with one bottle, or 250mg/d for 4 weeks with one bottle, or even 250mg/d for 8 weeks with 2 bottles. All would be perfectly acceptable for a beginner.
Yes, in fact it would likely work better for you than for younger men due to the correlation with higher cortisol in older men and lower strength. Cutting, recomping, even lean bulking, it can work well for any of these.
I always recommend people be well prepared because we all respond differently to things. Two people can take the same dosage for the same length of time and one is more suppressed than the other due to individual variables. That's why its highly recommended to have a SERM and AI on hand. Better safe than sorry, my friend.