In reply to jason1993: Hi, I have my SPSA (as it was called originally), did the training in 1992 and Assessment in 1996. Bit of a gap as I had not done the 40 pitches, by assessment. I passed but was DEFERRED until I logged 5 crags and 40 pitches.
I have used it at my school since 1996, after school weekly outdoors or at RATHO etc. Just in from being at RATHO now.
Go for the SPA with the Remit - you can outdoor climb, abseil, indoor climb and you can lead outside and a climber can second you, great experience for kids. So a big step up, you can add-on the Indoor leading module later.
I also Teach Outdoor Learning during my timetable, which I do Climbing as well.
In terms of the Assessment, best practice 3 anchors all equalised and independent - if possible, be slick with setting up top rope routes and abseil management. And be able to lead a Severe and empty a rack of nuts, hexes and friends. Obviously not all routes will take all that protection but practice on routes where you can put lots of gear. If your Assessor seconds you on assessment day, if you can empty your rack, it's great evidence for them to see.
Every time you lead after the SPA Training, keep practising the 'best practice' you see.