This is an excellent explanation with traditional hot splicing material. If you want to reduce the processing time after all preparation, I recommend to try the new generation of vulcanizing material Multiface. As it is already liquid and achieves the sulfur crosslink at ambient temperature you need only 80 degrees Celsius and 2-3 bars pressure and less time to finalize the job.
As a conveyor belt vulcanizer with 15 years experience; your splicing is taking too much time.how may times you are removing plies. We normally taking only three times if 4 ply. And also not giving bias for splice.
i work as a conveyor belt technician and have worked with belt splicing for almost 10 years and i'm sorry but i this must be the most ridiculous technique i have ever seen (sorry for being blunt).....and a splice that i 90 degrees or close to that is just stupid! you risk to much tension on the splice every time the splice is passing the turning point of the conveyor. room for improvement.