To the original poster.
I might be wrong on this but reading between the lines it doesn't look like you have done any tailwheel differences training. You need to do this whether or not you are flying a single seater.
From LASORS
In order to change to a different type or variant of
aeroplane, within the same class rating, or another variant
within the same type rating, Differences or Familiarisation
Training is required. Differences Training must be carried
out by an appropriately qualified Type or Class Rating
Instructor or Flight Instructor.
Differences training requires both theoretical knowledge
instruction and training on an aeroplane or appropriate
training device. Familiarisation training merely requires
the acquisition of additional knowledge relevant to the new
type or variant. This may be achieved with the assistance
of an instructor, another pilot experienced on type, or by
self-study. Familiarisation training is only sufficient where
differences training is not required.
It should be noted that when changing to different types,
or variants of types, that fall within the single-pilot singleengine
piston (SEP) class rating, the Differences training
is specifically required to encompass particular complex
features with which the new type or variant is equipped.
These features are:
Variable Pitch (VP) Propellers
Retractable Undercarriage
Turbo/Super-charged Engines
Cabin Pressurisation
Tail-Wheel
Electronic Flight Information Systems (EFIS)
Single Lever Power Control (SLPC)
Whilst there is some good advice on operating tailwheel aircraft on this thread, it's still not really the place to learn to fly a tailwheel.
You say you're a member of the LAA, which is great place to get yourself immersed in the whole tailwheel thing. The LAA have a great coaching scheme with lots of experienced tailwheel instuctors based all over the UK. The scheme also doesn't cost the earth to get trained and is well worth the investment as you will probably find that the coach will have a wealth of expereince of operating similar types to similar airfields.
My tailwheel gems.
1. A good tailwheel pilot should be able to use all the landing techniques available in his toolbox to land tailwheel aircraft. The clever bit is knowing which technique to apply to the aircraft type you're flying, the runway surface, runway length, wind conditions and approach path. You need to be able to take all these things into consideration and be flexible and skillful enough to apply the most appropriate technique whilst taking into account all these factors. This comes with knowledge and experience.
2. The key to any good tailwheel landing is the approach, regardless of the type of landing you will do. If you haven't got the approach right you might as well throw away the landing. Coming in with a little extra speed is fine when you are initially learning the techniques and have plenty of runway available but is quite frankly 'gash' once you have been signed off for tailwheel differences training. Not on parameters? GO AROUND!
3. Never switch off at the end of the flight. Most tailwheel aircraft have lovely handling airborne and are pretty easy to fly. The hardest part of the sortie is the last bit. The landing and taxy back to the hangar. This is where a lot of people come to grief because they think the sortie is over, switch off and then prang the aeroplane. A lot of pilots don't use the flying controls properly when taxiing in windy conditions.
4. Get proper training. I have seen a few times people who have not been properly schooled in tailwheel techniques come to grief and it is a nightmare to unpick all the wrong/poor techniques they have learned.
5. Once trained fly as often as you can afford to. Always try to do a handful of circuits before you land for the final time to keep your skills sharp.
Hope this is of use.