What would you say is the best way for me to get some of these credited towards the future training?
Are all Member States rejecting three-axis ultra-light hours for the Part-FCL CPL(A)? The pilot-in-command hours on sailplanes and SEPs count towards the Part-FCL CPL(A). A further 27 hours on sailplanes or TMGs may be done, if you wish, as they will count towards the required 100 pilot-in-command hours. The head of training at your intended Part-FCL training organisation will be happy to assess your needs.
Crediting towards a US private with ASEL depends on which, if any, of the ultra-light hours satisfy 14 CFR 61.51(j). If in doubt consult with a Designated Pilot Examiner (DPE) covering the intended training location. In the most favourable case, assuming all other 14 CFR 61.109(a) requirements have been met, only a further three hours of dual flight training in preparation for the practical test are necessary. For US licensing purposes note the interpretation of "cross country" made in 14 CFR 61.1(b).
As Duchess Driver has commented some hours are dressed up differently under US logging rules. For UK-granted Part-FCL licences the applicable rules are in the Air Navigation Order and it would be wise to brief the US-certificated flight instructor accordingly. The Canadian logging rules are very similar to those in UK.
thanks for the advice about the Canadian CPL
The information was for a Canadian
PPL(A). The Canadian Aviation Standards recognise and credit prior SEP flying experience. A Canadian PPL(A) can be done without wasting time and money on TSA checks, visas, embassy appointments, fingerprinting, etc, and it may be converted into a standard US private without doing a practical flight test.
421.26(9)(c) An applicant who does not hold a Private or higher pilot licence - Aeroplane issued by a contracting state may be credited foreign dual and solo aeroplane flight training time and aeroplane ground school time towards the knowledge and experience requirements for the issue of a Private Pilot Licence - Aeroplane, if the applicant provides certification from the holder of a Flight Instructor Rating - Aeroplane that all ground and flight training exercises have been satisfactorily reviewed.