In many wide-spread technologies, such as welding of structural elements or thermo-mechanical forming processes, as well as some quickly developing others like additive manufacturing, steels are subject to the mechanical consequences induced by solid-solid phase transformations. As such, the improvement of our knowledge and predictive capabilities on this matter continues to be paramount. Here we investigate the effects of non-conventional loading conditions during TRansformation Induced Plasticity (TRIP) tests on 35NiCrMo16 steel specimens, with the goal of attaining a better and broader understanding on how this affects the evolution of plastic strain resulting from micro-structural changes. These are performed on this regard, with focus on varying the intensity of the applied external force but also, and most importantly, the instant during continuous cooling when such a force is applied. Thereby, we are able to see certain indications of the impact these conditions are producing, as well as some interesting results on the final overall plastic strain norm in relation to the corresponding TRIP norm. These tests also allow to gather information about the evolution with temperature of the mechanical properties of the phases, which enables for a more faithful modelling of the phenomenon. On another side, the models of Leblond and Taleb-Sidoroff, derived from the mechanical equilibrium in the model case of the Greenwood-Johnson mechanism for diffusive transformations, and whom to this date remain the most predictive, (both quantitively and qualitatively), simple-to-use analytical models of TRIP, are known to yield good results when used to predict scenarii that comprehend conventional loading conditions. However, recent evidence shows a quantitative improvement of predictions, when some additional considerations explored via full-field Finite Element modelling of diffusive transformation on 100Cr6 steel had been followed. Since modeling solid-solid phase transformations via (FE) simulations eliminates any supposition about the mechanical equilibrium of the phases, it leaves aside crucial hypotheses upon which rest the aforementioned models. This enables to verify through the numerical results, the extent to which these hypotheses do or do not hold for the analytical models that propose them. Finally, using the mechanical properties identified from the tests on 35NiCrMo16 steel, its structural transformation is simulated in order to confirm the model's capability to reproduce experimental observations.