I also wonder about when to take the pill. At the moment I pop a taladafil (generic cialis) about an hour before, but I haven't really worked out whether this is optimal or whether sildenafil would be better.
The optimal time for the various meds has been discussed before.
Official guidance for sildenefil (Viagra) is fairly simple and says 1 hour after taking
In the many years I've been using them, I've generally found that to be the case.
Tadalafil (Cialis) is far less simple to determine the optimal time for maximum effect.
Even the NHS just say effective after 30 mins and that's it.
The cialis leaflet doesn't help much. It just says - Starts working after 30 minutes, effective up to 36 hours.
Pharmaceutical advice suggests it peaks between 1 - 2 hours.
That's a hell of window and during previous posts, members have said it peaks in 4 - 6 hours.
I thought, that being an ol' codger, Tadalafil might work quicker, but in fact my experiences are that it seems to be more effective after about 12 hours!!
That means if I've booked a rub n tug for 10am, I've got to swallow the tablet with my cocoa when I'm watching The Epilogue the night before.

I'd be interested to hear of similar experiences.