Agree - never had a problem with spin recovery in T67 as long as correct recovery technique used.
It would be a good idea to find an experienced instructor who has been through the CFS training and is familiar with the T67 to show you high rotational spin and what to do etc.
History repeats itself - my dad instructed on Miles Magisters during the war and they got a (unjustified) reputation for problems recovering from a spin. He always told me that so long as you applied and maintained the correct recovery action there was never any problem!