If you want to run Prop for the duration go for it. It'll get tedious pinning like that really quick though, and I hope you rotate enough sites to give them plenty room to recover.

In all honesty, if the past two cycles with the taper worked well for you, why change it up?

It sure is nice not to have to pin EOD for those 5 weeks.

Done it before at 150mg/EOD couldn't tell the difference between that and 500mg Test E.

It is really up to you which ester you use as long as you pin according to half lives and keep the levels stable. Short esters are most commonly used for shorter runs or with combination with other short acting compounds. If your cycles are 12 weeks and longer I would recommend long esters to avoid so much pinning. Rotating your injection sites is very important too. You may use an oral to kick start your cycle. But if you prefer prop and pinning doesn't bother you than go ahead, makes ni difference. I prefer short esters of every compound and don't mind pinning. I did a 20 week primo cycle this year with ed injections but it did get annoying by the end. So to sum it up, it is a personal preference.