(30+3) TT on a monotone undercard flop vs. 8-tabler

[psyduck]

History on LilWinston44: he was a regular 4 (or 8?) tabler on Eurobet, and I'm seeing him on Party now. He plays the same as most of us: tight early and pushbot late game. Interesting hand I believe.

NL Texas Hold'em $30 Buy-in + $3 Entry Fee Level:2 Blinds(15/30)
Table Table 67535 (Real Money)
Seat 10 is the button
Total number of players : 9
Seat 1: DTDOC ( $905 )
Seat 5: lilwinston44 ( $745 )
Seat 6: Garlord ( $749 )
Seat 7: grizwald05 ( $830 )
Seat 10: Toolchest ( $755 )
Seat 2: stump23 ( $790 )
Seat 8: prossylord ( $1590 )
Seat 9: Xeon99 ( $885 )
Seat 3: Hero ( $751 )
Trny:16625549 Level:2
Blinds(15/30)
** Dealing down cards **
Dealt to Hero [ Tc Th ]
Hero calls [30].
lilwinston44 calls [30].
Garlord calls [30].
grizwald05 folds.
prossylord folds.
Xeon99 folds.
Toolchest folds.
DTDOC calls [15].
stump23 checks.
** Dealing Flop ** [ 3h, 7h, 2h ]
DTDOC checks.
stump23 checks.
Hero bets [100].
lilwinston44 raises [250].

What do you put him on? I initially put him on a set, but at the time, I thought he *might* make the same play with a high heart. Most people slowplay sets, so he might just be nervous with a monotone flop. Should I eliminate a play with a large heart because most 8-tablers would flat-call or fold here?

Garlord folds.
DTDOC folds.
stump23 folds.
hero calls [150].
** Dealing Turn ** [ Jc ]
hero checks.
lilwinston44 bets [250].
hero is all-In [471]
lilwinston44 is all-In [215]

Oops.