in preparation for my mentalism I discovered that memory systems were required.
I'm not sure I know what you mean by 'in preparation for your mentalism? Do you have a deadline to 'learn' mentalism? Becuase learning magic or mentalism is not something which ever stops- I have played guitar for around 7 years and there was never a point at which I had 'learned' to play it- I just played it.
Anyway, on the subject of mneumonics, I have been using them for several years and they've been great for exams. I often find the people who think 'that stuff doesn't work on me' are only limited by their belief that it won't- it becomes a seld fullfilling prohpecy. Once you eliminate limiting belief systems there hasn't been anyone who I haven't been able to teach mneumonics to without remarkable results.
Mneumonics are something I'm not afraid to dicuss openly because It is so 'real' and because I know it only comes after hard work- all the information is out there, it onl comes from applying it.
I don't think mneumonics are essential, but they are one of the most real techniques in mentalism like cold reading, hellstromism e.t.c. You can perform mentalism without those skills, but I think any mentalist who isn't proficient in any of those skills is missing out A lot!
On memorising the deck into red and black, my record is 5 seconds. I don't perform it that much because I'm not sure if it is that entertaining as an effect. If I could memorise the deck in 5 seconds then that would be impressive! I remember it like binary numbers, every good book on mneumonics has a section on binary numbers- I think the only truly recomendable memory books are from Dominic O'brien.
I don't know how I could help out on the fading journey system unless I was there with you to find out the problem. All I can say is to make sure your images are memorable and amusing- I soon found that with the journey system it's not just good enough to place a picture of a foot next to my oven- but I need to roast the foot until it is a nice golden brown oozing a charming aroma, with crusty, gunky toes ruining the otherwise appetising foot. So as long as you make the system interactive and.. well, quite obviously memorable, they won't fade, but if you just think placing them there will do- it can work fine, but I have never found that much help.
''To go wrong in one's own way is better than to go right in another's.'' Dostoevsky's Razumihin.