You are very lucky!
Sheffield IAM meet up the first Monday of the month at Treeton WMC (Rotherham) so come along and get stuck in. A great group of lads'n lasses. Good social scene, good rides out, nothing to lose and everything to gain
Wishbone -- The "issue" with almost all training/coaching, (and those two terms describe different processes), is the relationship between pupil and teacher. Find someone you like, respect, feel able to accept constructive comment from, and enjoy the whole experience - you will never look back.
However, put yourself through a prescriptive, narrow, formulaic and ultimately stilted regime and you will suffer increased anxiety, reduced capacity to learn or develop your riding - it will also be a pretty unpleasant experience.
Both I.A.M. & RoSPA have advantages, and each will offer to assist you to develop as a rider. Briefly, I.A.M. offer a "social" element to their members, something lacking in RoSPA's provision. Each local I.A.M. group develops its own atmosphere and culture, and to a degree, its own standards of "advanced" riding. RoSPA tends toward a more individual approach, lacks the camaraderie to be found in some of the I.A.M. groups, but the levels of riding that it requires for achieving a graded pass,
tend to be higher than that of the I.A.M. (
some I.A.M. groups set a very high standard). RoSPA also requires all its graduates to be re-examined every three years, otherwise their qualification lapses - something that I feel to be a very good thing.
Why do I say that you are so very lucky? Well, because you live near to one of the very best I.A.M. groups in the country, one that sets very high standards, has an active and welcoming social side, and an examiner in Micky Wheeler who is superb, (oh, you have no idea how much it cost me to say that!). Go along to one of their meetings, see if you like the atmosphere, see if you can relax with the observer you choose -
your choice not theirs, and prepare to enjoy yourself.
You are also lucky in that you have several local RoSPA qualified instructors surrounding you, so if you find, for whatever reason, that the I.A.M. is not for you, and that you'd rather go the more "bespoke"/individual route, then you are spoilt for choice.
Just make sure that you find someone whom you feel comfortable with, confident in the knowledge that you can relax, enjoy, and learn with him/her.
After all, we learn best when we're having
fun.
All the best, Jim.