Is there any foreseeable problem with a border bounce to Penang while on a METV with an extension?

The user is inquiring about the potential issues related to doing a border bounce to Penang while holding a Multiple Entry Tourist Visa (METV), which includes one 30-day extension. They have a history of straightforward entry stamps and a paid flight out of Thailand scheduled before the 60 days expire. Responses from the community suggest that there should be no problems with this plan, advising that if using an eVisa, it's important to keep a printed copy.