ECNL-RL / ECNL club players cannot change to another club with teams in those leagues mid-year, even if the player is from an NCSL or EDP team and going to a team in those leagues. Its in the league rules. They also can't just train with a team to see the "fit" until March.
(
https://cdn1.sportngin.com/attachments/document/0131/6483/VPSL_Rules_of_Competition-updated_20230801.pdf?_gl=1*1e51vwm*_ga*MTMwOTY5NDY3OC4xNzI3MTgzMjYw*_ga_PQ25JN9PJ8*MTcyNzI3MTI0Ny4zLjEuMTcyNzI3MTI2NS4wLjAuMA..#_ga=2.28016380.1379052510.1727271248-1309694678.1727183260).
3.8. Recruiting/Registration.
3.8.1. VPSL is opposed to the practice of recruiting players from one VPSL member club to another VPSL member club at any time during the seasonal year, and in particular, from the start of the fall season until the conclusion of the spring season.
3.8.2. VPSL clubs may not train, invite a player to train, invited a player to tryout or try out any VPSL registered from another VPSL club prior to March 1st of that season, unless the player has been released by their current club.
3.9. Tryouts. Any team may conduct publicly announced, open tryouts to acquire players on or after March 1. Any player and/or his/her parents or guardians may initiate direct contact with any coach or team/club official for the purpose of joining that team for the following registration year.
3.10. Transfers.
3.10.1. A player rostered to a team in a VPSL member club is ineligible to transfer to any other team affiliated with a different VPSL club within the same seasonal year except as follows: the player has moved to the geographical area of the new club and beyond reasonable travel distance of the old club AND both Directors agree to the transfer.
3.10.2. All other transfers must be approved by both Directors and league administrator. 3.10.3. Transferring to a team affiliated with another league after being released from a VPSL
club team does not make the player eligible to then transfer to another VPSL club team.